| 摘要 |
The invention relates to a V-belt assembly for transmitting rotational movements between (at least) two belt pulleys, consisting of at least one continuous load-bearing element (10a and/or 10b) and a large number of blocks (2) mounted thereon. The load-bearing element(s) (10a and/or 10b) is/are inserted into slots (6a and/or 6b) which extend from at least one inclined lateral surface (4a and/or 4b) of the blocks (2) towards the central region of the latter. The surface of said load-bearing element(s) (10a and/or 10b) and the flanks (limiting surfaces 24) of the block slots (6a and/or 6b) are provided with convex (16b, 14a) and/or concave sections (16a, 14b). The aim of the invention is to optimise the contact relationship between the load bearing element(s) (10a and/or 10b) and the blocks (2) and in particular to reduce the insertion impact when the belt is inserted in the Woodruff key. The convex and/or concave sections (elevations and recesses 14a, 14b) on the flanks (limiting surfaces 24) of the block slots (receiving slots 6a and/or 6b) are offset in relation to one another. In the displacement direction of the belt, the upper elevation (14a') (or recess) of the receiving slot at its greatest dimension is positioned slightly in advance of the lower elevation (14'') (or recess) of said slot (6a or 6b). The invention is used for the continuous speed and torque conversion in particular in automotive applications.
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