A GYRATORY CRUSHER, A METHOD FOR ROTATING AN UPPER CRUSHER FRAME AND A RETROFITTING KIT
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United States of America Patent
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Issued Date -
Jul 27, 2023
app pub date -
Jun 17, 2021
filing date -
Jun 26, 2020
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Abstract
A gyratory crusher for comminution of material fed into the crusher. The gyratory crusher includes an upper crusher frame for supporting one or more wear parts. The upper crusher frame is configurable between an operation mode and a rotation mode. The gyratory crusher further includes a lower crusher frame, wherein the upper crusher frame in the operation mode is in engagement with the lower crusher frame. The gyratory crusher further includes a rotation device configured to rotate the upper crusher frame in relation to the lower crusher frame. The rotation device includes a gear ring configured to be rotatable relative to the lower crusher frame around a vertical axis. A method, and a retrofitting kit, for rotating an upper crusher frame of a gyratory crusher relative to a lower crusher frame of the gyratory crusher are also disclosed.
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