Trench wall cutter
AssigneeBauer Spezialtiafbau GmbH
InventorsMaximilian Arzberger, Ignaz Seitle
Life of this patent
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Abstract
A trench wall cutter with a drive mechanism which is attached to the cutting frame in a position which is spaced away from the bearing shield with a gear for driving at least one cutting wheel is provided. Between the drive mechanism and the drive pinion of the gear in the bearing shield there is a drive shaft. To reduce wear on the drive shaft bearing and gear wheel in the gear an external spiral tooth system is formed on one end of the drive shaft which fits into a connecting sleeve with an internal tooth system. In the internal tooth system the drive shaft with its external spiral tooth system is held rotationally fixed with the capacity to be deflected around the axis of the drive shaft. The connecting sleeve is also joined to the drive mechanism or drive pinion of the gear.
Claims11
A trench wall cutter comprising:
- a cutting frame,
- a bearing shield positioned on said cutting frame,
- at least one cutting wheel pivotally mounted on said bearing shield,
- a drive means for driving said at least one cutting wheel attached to the cutting frame remote from said bearing shield,
- a gear located in the bearing shield,
- a drive shaft connected at a first end to the drive means and at a second end to a drive pinion of the gear in the bearing shield, the pinion positioned substantially coaxially with said drive shaft, at least one of said first and second end of said drive shaft including an external spiral tooth system, and
- a connection sleeve including an internal tooth system into which said external spiral tooth system of said end of said drive shaft is received so as to be deflected around the drive shaft axis, with said connecting sleeve being joined to one of said drive means and said drive pinion.
Dependencies are inferred from the claim text.