Patent ID: 6148945
Filing Date: 2000-11-21
Classification: B60K

Abstract:
A steering drive axle for agricultural tractors, comprising:a central body (11) containing a differential unit (12),articulated suspension means (14, 15) for supporting respective wheel hubs (13a) for pivoting in a transverse vertical plane, andtransverse transmission members (16-20) for transmitting the rotary drive from the differential unit (12) to the wheel hubs, the transverse transmission members being articulated in order to follow the vertical pivoting and the steering movement of the hubs, characterised in that the transverse transmission members (16-20) comprise a half-shaft portion (18) having a first end connected to a universal joint (17) at the output of the central differential unit and a second end connected to a constant-velocity joint (19) with a double universal joint, fixed for rotation with a respective hub (13a), the said half-shaft portion (18) being mounted for rotation on a support means (22) connected (23) to the articulated suspension means (14, 15) in a manner such as to support the outer end of the half-shaft portion (18) and the inner end of the constant-velocity joint (19),wherein the connection (23) of the support means (22) to the articulated suspension means (14,15) is an articulated connection.