| 摘要 |
The aim of the invention is to provide a simply structured grinding head which is characterized in that the speed of the individual grinding wheels ( 36 ) substantially exceeds that of the discoid base ( 3 ) carrying them and which can be combined with grinding attachments of a different type, even with grinding attachments of already known types. This aim is attained with the provision of the grinding head of the aforementioned type in that the grinding head is configured from three structural components that can be detached from one another, namely a drive element ( 1 ) mounted in a housing, a transmission element ( 2 ) and a discoid base ( 3 ). The transmission element ( 2 ) comprises a center body ( 15 ) for coaxially receiving the connection piece ( 9 ) so that it can be rotated. The strongly reducing bearing section ( 18 ) is disposed radially outside the center body ( 15 ) and is fixated on the housing ( 4 ) and its strongly reducing part ( 20 ) is connected to the radially inner disk body ( 30 ) of the discoid base ( 24 ) so as to transmit the rotational movement. The disc body ( 30 ) is received on a hub ( 28 ) so as to be rotated, said hub engaging with a seat ( 25 ) of the transmission element ( 2 ) in a form fit. A center driver plate ( 32 ) is non-rotationally disposed on the hub ( 28 ) to drive the grinding wheels.
|
