The invention relates to a power-assisted drive (1) for a steering system of a motor vehicle, comprising a worm shaft (5) which can be driven in rotation about its axis (A) and has a worm toothing (51) which engages into a worm wheel (4) which can be coupled to a steering shaft (2), the worm shaft (5) being rotatably mounted in a housing (3) in at least one bearing (7). In order to achieve a higher level of safety with low production and assembly efforts, the invention proposes that the housing (3) has a central wall (33) with a limiting bore (32) through which the worm shaft (5) extends, the limiting bore (32) surrounding the worm shaft (5) with a radial clearance, and the channel cross-section of the limiting bore (5) is smaller than the outer diameter (D) of the worm toothing (51).

    本发明涉及一种用于机动车的转向系统的助力驱动装置(1),包括能够绕其轴线(A)旋转地驱动的、具有蜗杆齿部(51)的蜗杆轴(5),所述蜗杆齿部啮合到能够与转向轴(2)耦合的蜗轮(4)中,其中所述蜗杆轴(5)在壳体(3)中能够旋转地支承在至少一个轴承(7)中。为了在较小的制造和装配耗费的情况下实现更高的安全水平,本发明提出,壳体(3)具有带有限制孔(32)的中间壁(33),蜗杆轴(5)延伸穿过该限制孔,其中,限制孔(32)以径向间隙环绕蜗杆轴(5),并且限制孔(5)的通道横截面小于蜗杆齿部(51)的外径(D)。


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    Title :

    Power-assisted drive for steering system of motor vehicle and steering system of motor vehicle


    Additional title:

    用于机动车的转向系统的助力驱动装置和机动车的转向系统


    Contributors:

    Publication date :

    2023-03-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge




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