Device for grinding or milling and method for sealing such a device
AssigneeIKA-Werke GmbH & Co. KG
InventorAxel Kaufmann
Life of this patent
Estimating the term…
Abstract
The aim of the invention is to improve the sealing of a device for grinding or milling material to be ground. To this end, the invention relates to a device (1) and to the method for sealing particularly such a device (1). According to the invention, the seal (10) of the device (1) includes the sealing ring (11) which radially surrounds the drive shaft (6) and the cutting ring (12) arranged between the sealing ring (11) and the tool (5). In order to produce the seal (10), the cutting ring (12) is set into the sealing ring (11) and positioned in the annular slit (14) created by this action, said cutting ring being connected to the tool (5) and/or the drive shaft (6) such that the passage (7) is sealed.
Claims19
A device (1) for grinding or milling grinding product, comprising a container (2) for receiving the grinding product, a drive shaft (6), and a tool (5) which is rotatable in the container (2) about an axis of rotation (R) and is connected to the drive shaft (6), wherein the drive shaft (6) is led out of the container (2) through a passage opening (7) in a base (8) or a wall of the container (2), wherein the device (1) has a seal (10) with which the passage opening (7) is sealed, the seal (10) including a sealing ring (11) surrounding the drive shaft (6) and a cutting ring (12) surrounding the drive shaft (6), and, wherein the sealing ring (11) has an annular slot (14) which is cut into the sealing ring (11) by the cutting ring (12) upon initial commissioning of the device (1), the cutting ring (12) being positioned in the annular slot (14).
A method for sealing a device (1) for grinding or milling grinding product, the method comprising:
- providing a device for grinding or milling grinding product, the device including a container (2) for receiving the grinding product, a drive shaft (6), and a tool (5) which is rotatable in the container (2) about an axis of rotation (R) and is connected to the drive shaft (6), wherein the drive shaft (6) is led out of the container (2) through a passage opening (7) in the container (2);
- providing a seal (10) for sealing the passage opening (7), the seal (10) including a sealing ring (11) and a cutting ring (12);
- disposing the sealing ring (11) about the drive shaft (6);
- disposing the cutting ring (12) about the drive shaft (6);
- causing relative rotation between the sealing ring (11) and the cutting ring (12) so that the cutting ring (12) cuts the sealing ring (11) in order to produce an annular slot (14) in the sealing ring (11), after which the cutting ring (12) is positioned in the annular slot (14).
Dependencies are inferred from the claim text.