Grinding head for floor grinding machine comprising at least one belt pulley, floor grinding machines and methods
AssigneeHusqvarna AB
InventorsAndreas Fogelberg, Daniel Gustavsson, Linus Ottosson, Samuel Adolfsson
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Abstract
The present disclosure relates to a grinding head for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head comprises a lower casing member, comprising a lower support and an upwardly extending edge portion, and an upper casing member, comprising an upper cover and a downwardly extending edge portion, wherein the upper casing member is joinable to the lower casing member by causing axially distal portions of the edge portions to bear on each other.
Claims9
A grinding head for a floor grinding machine, comprising:
- a grinding head casing enclosing a transmission mechanism for transferring power from an ingoing axle to cause the grinding head to rotate,
- wherein the transmission mechanism comprises at least one belt pulley, and at least one belt,
- wherein the belt pulley presents a releasably attachable edge portion, which extends over more than 50° of a central angle of the belt pulley, and less than 120°, and which, when released, is movable relative to the remainder of the belt pulley, such that a circumference of the belt pulley is reducible,
- wherein the circumference of the belt pulley is reducible by rotating the belt pulley after moving the releasably attachable edge portion radially inward relative to the remainder of the belt pulley, and
- wherein the belt is resiliently flexible, such that its length is extended by 2.0-10% when in a mounted state as compared to a relaxed state.
A method of attaching or releasing a belt housed in a grinding head of a floor grinding machine, comprising:
- releasing a releasably attachable edge portion of a belt pulley, which edge portion extends over more than 50° of a central angle of the belt pulley, and less than 120°,
- moving or sliding the releasably attachable edge portion radially inward relative to the belt pulley,
- rotating the belt pulley after moving the releasably attachable edge portion radially inward such that a circumference of the belt pulley is reduced,
- applying or removing the belt,
- putting the releasably attachable edge portion back, and
- attaching the releasably attachable edge portion.
Dependencies are inferred from the claim text.