Rock breaking machine and lubricating method
AssigneeSandvik Tamrock Oy
InventorMika Oksman
Life of this patent
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Abstract
A rock breaking machine and to a method of lubricating a tool of a rock breaking machine. The lubricating system comprises at least one lubricant channel (23) into which lubricant is fed by a lubricating device (24). Lubricant is supplied to the bearing members (19) of the tool (6, 13) of the rock breaking machine. The lubricating device comprises a lubricant container (25) and a transfer device (26). The transfer device (26) controls the feed of lubricant into the lubricant channel. The lubricant container (25) is integrated into the body (17, 18) of the rock breaking machine.
Claims13
A rock breaking machine comprising:
- a body;
- an impact device for generating impact pulses in a tool that is connectable to the rock breaking machine;
- bearing members for supporting the tool onto the rock breaking machine;
- a lubricating system for lubricating the bearing members, the lubricating system comprising at least one lubricant channel, and at least one lubricating device for feeding lubricant along the lubricant channel to the bearing members of the tool;
- the lubricating device comprising at least one lubricant container and a transfer device for feeding lubricant,
- the lubricant container being arranged in the body of the rock breaking machine,
- and wherein
- the volume of the lubricant container is divided into a pressure space and a lubricant space by a dividing member, which is arranged to affect the volumes of the pressure space and lubricant space;
- the pressure space is connected to a pressure medium channel, which allows pressurization of the pressure space by feeding pressure medium therein;
- lubricant is storable in the lubricant space;
- the pressure of the pressure medium acting in the pressure space is arranged to pressurize the lubricant in the lubricant space by means of the dividing member;
- and the lubricant space is connected to a transfer device, which is arranged to control the feed of lubricant from the lubricant space into the lubricant channel.
A method of lubricating a tool of a rock breaking machine,
- the rock breaking machine comprising a body, an impact device for generating impact pulses in a tool that is connectable to the rock breaking machine, bearing members for supporting the tool onto the rock breaking machine, and a lubricating system for lubricating the bearing members;
- the method comprising
- feeding lubricant from a lubricant container along a lubricant channel to the bearing members of the tool by means of a lubricating device,
- storing lubricant in a lubricant space provided in the lubricant container formed in the body of the rock breaking machine;
- supplying the pressure of pressurized medium into the pressure space of the lubricant container, the pressure space being separated from the lubricant space by means of a dividing member;
- pressurizing the lubricant in the lubricant space by pushing the dividing member towards the lubricant space by means of pressure medium;
- and batching a predetermined portion of lubricant into a lubricant channel by the lubricating device.
Dependencies are inferred from the claim text.