The invention relates to a double worm gear drive (10) and to a drive unit (11) for adjusting a movable part (12), in particular a seat assembly or a steering column, in a vehicle, comprising a first drive stage (21), which consists of a first worm and a first worm gear meshing with the first worm, and a second drive stage (31), which consists of a second worm and a second worm gear meshing with the second worm, the second transmission stage consists of a second worm and a second worm wheel which meshes with the second worm, the first worm wheel being coupled to the second worm in a rotationally fixed manner via a common axis of rotation and the second worm wheel being produced integrally with a bearing shaft made of plastic. The bearing shaft is supported in a common transmission part housing of the two transmission stages, and the bearing shaft has a hollow shaft profile as a driven element, in which hollow shaft profile at least one corresponding profiled shaft can be inserted in the axial direction in a form-fitting manner.
本发明涉及一种双蜗轮蜗杆传动件(10)以及一种传动件驱动单元(11),用于调整车辆中的可移动的部分(12)、特别是座椅组件或转向柱,具有第一传动级(21)和第二传动级(31),所述第一传动级由第一蜗杆和与所述第一蜗杆啮合的第一蜗轮组成,所述第二传动级由第二蜗杆和与所述第二蜗杆啮合的第二蜗轮组成,其中,所述第一蜗轮通过共同的旋转轴线抗扭地与所述第二蜗杆耦接,并且所述第二蜗轮与由塑料构成的轴承轴整体地制造,所述轴承轴支承在两个传动级的共同的传动件壳体中,并且所述轴承轴具有作为从动元件的空心轴型材,至少一个相应的异型轴形状配合地沿轴向方向可插入到所述空心轴型材中。
DUAL WORM GEAR AND GEAR DRIVE UNIT FOR ADJUSTING A MOVABLE PART IN A VEHICLE
用于调整车辆中的可移动的部分的双蜗轮蜗杆传动件和传动件驱动单元
2023-06-13
Patent
Elektronische Ressource
Chinesisch