초록 ▼

A driveshaft (1) for driving the wheels of a motor vehicle has two constant velocity joints (2, 3) and a connecting shaft (4). The two constant velocity joints (2, 3) are provided in the form of constant velocity fixed joints. The plunging assembly required to change the longitudinal distance (L) in

A driveshaft (1) for driving the wheels of a motor vehicle has two constant velocity joints (2, 3) and a connecting shaft (4). The two constant velocity joints (2, 3) are provided in the form of constant velocity fixed joints. The plunging assembly required to change the longitudinal distance (L) includes a plunging journal (21), formed onto the second joint part (20) of the second constant velocity joint (3), and a plunging portion (26) of the connecting shaft (4). The shaft (4) surrounds the plunging journal (21) and is provided in the form of a tubular shaft. The cross-section of the plunging portion (26) has the shape of a corrugated shaft. Each outer corrugation peak, in the bore of the plunging portion (26), includes a second running groove (29) positioned opposite a running groove (22) in the plunging journal (21). Balls (23) are rollingly arranged between the two running grooves (29, 22) and held by a cage (24). By providing the plunging portion (26) of the connecting shaft (4) in the form of a corrugated tube, it is possible to use less mass and to increase the strength values as a result of the forming operation. At the same time, the vibration behavior is improved.

대표청구항 ▼

A driveshaft for use in a driveline for driving the wheels of a motor vehicle, comprising: two constant velocity joints each having a first joint part with connecting means to establish a connection with a driving or driven part of a driveline, each constant velocity joint having a second joint part

A driveshaft for use in a driveline for driving the wheels of a motor vehicle, comprising: two constant velocity joints each having a first joint part with connecting means to establish a connection with a driving or driven part of a driveline, each constant velocity joint having a second joint part with said two constant velocity joints being connected to one another by a connecting shaft, and said two constant velocity joints being designed as constant velocity fixed joints enabling only angular movements between their first and second joint parts; means for enabling changes in the distance between the connecting means, said means for enabling change including a plunging journal and plunging portion, said plunging journal is fast with one of the two second joint parts and having a longitudinal axis identical to that of the associated second joint part, said plunging journal, in its outer face, including a plurality of circumferentially distributed first running grooves extending parallel to the longitudinal axis, said connecting shaft is provided in the form of a tube including said plunging portion which is movably entered by the plunging journal, having a cross-section of the plunging portion is corrugated, with an outer corrugation peak and an outer corrugation valley alternating on the outer circumference and said bore of the plunging portion including second running grooves which are positioned opposite the first running grooves of the plunging journal and extend parallel to the longitudinal axis and said second running grooves being arranged in an outer corrugation peak, and after each first and second running grooves, one of each forming a pair, receive a plurality of rolling contact members arranged one behind the other along said running grooves.