System for securing bits against rotation

The present system is disclosed for use in securing bits (12) against rotation in a motor grader. The bit securing system (10) has at least two bits (12), and each bit (12) has a respective shank (24). Each shank (24) has a respective locking portion (28). An adapter board (14) has at least two hole...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Congdon, Thomas M, Parzynski, David B
Format:	Patent
Sprache:	eng
Schlagworte:	DREDGING EARTH DRILLING FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MINING MINING OR QUARRYING PERFORMING OPERATIONS SOIL SHIFTING TRANSPORTING WORKING CEMENT, CLAY, OR STONE WORKING STONE OR STONE-LIKE MATERIALS
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Beschreibung
Zusammenfassung:	The present system is disclosed for use in securing bits (12) against rotation in a motor grader. The bit securing system (10) has at least two bits (12), and each bit (12) has a respective shank (24). Each shank (24) has a respective locking portion (28). An adapter board (14) has at least two holes (33), and each respective hole is configured to receive a respective shank (24) of a bit. An anti -rotation plate (18) is configured to engage the respective locking portions (28) of the shanks (24) of the bits (12) such that the anti-rotation plate (18) constrains the bits against rotation with respect to the adapter board (14).