Tank cleaner with stack arrangement

A static body assembly for a tank cleaner, the static body assembly comprising:

• a static body having a housing with an upper housing part and a lower housing part, the upper housing part being configured for coupling with a supply line for receiving a cleaning fluid;
• a gear arrangement comprising a gear assembly with a main input shaft and a main output shaft extending beyond the housing;
• and
• a driving arrangement coupled to the main input shaft, the driving arrangement being configured to drive the main input shaft via the cleaning fluid;
• wherein the gear arrangement and the driving arrangement are configured to form a stack arrangement with at least one component of the gear arrangement and a plurality of components of the driving arrangement stacked along a main axis of rotation;
• and
• wherein the components in the stack arrangement radially support each other to secure a radial alignment of the stack arrangement.

A method for mounting a tank cleaner, the method comprising the steps of:

• providing a static body having a housing with an upper housing part and a lower housing part, the upper housing part being configured for coupling with a supply line for receiving a cleaning fluid;
• stacking a plurality of components of a gear arrangement and at least one component of a driving arrangement together to form a stack arrangement, the gear arrangement comprising a gear assembly with a main input shaft and a main output shaft extending beyond the housing and being configured to drive the rotating body around a main axis of rotation, the driving arrangement operatively being coupled to the main input shaft and configured to drive the main via the received cleaning fluid, wherein the stack arrangement is formed by stacking the components of the driving arrangement and the gear arrangement along the main axis of rotation, and wherein the components in the stack arrangement radially support each other to secure a radial alignment of the stack arrangement;
• inserting the gear arrangement and the driving arrangement into one of the upper housing part and the lower housing part;
• closing the upper housing part and the lower housing part;
• and
• mounting a rotating body rotary about the main axis of rotation on the static body.