V型带传动的传递功率损失 第I部分:V型带和带轮楔角失配的影响

Power Transmission Losses In V-Belt Drives Part 1:Mismatched Belt And Pulley Groove Wedge Angle Effects

AV10原始毛边的V型带分别切成由32°到42°楔角,和36°楔角的带轮在51mm的节圆半径上啮合运转,实验表明,37°到38.5°楔角的带与槽配合最好,啮合运转的效率最高。而其他楔角的带由于不能与带轮槽较好配合的径向失配造成超速和转矩损耗的功率损失。故现有失配带的径向配合的理论模型是不适当的。本结论已经推广并开发了带弯曲变形理论,详细介绍了按照带轮半径、带的结构和带的长度,带轮槽与带啮合运转的角度切成40°,运转效率最高。

AV10 raw-edged V-belts cut to wedge angles from 32° to 42° have been run in 36° grooves on pul- leys of 51 mm pitch circle radius. It has been shown experimentally that belts with wedge angles from 37° to 38.5° fitted the grooves best and were the most efficient. The excess speed and torque loss parts of the pow- er loss of other belts was due to the larger radial compliance of these belts which did not fit their pulley groove. Current theoretical models of radial compliance of misfitting belts are shown to be wrong. The results have been generalized and a theory of belt bending distortion developed to give detailed rec- ommendations of the most efficient pulley groove angles in which to run belts cut to 40°, depending on pul- ley radius, belt construction and belt length.