单选题-单题 较易0.85 引用1 组卷60
如图所示的皮带轮传动装置中,A为主动轮,B为被动轮,L为扁平的传动皮带,A轮与B轮的轮轴水平放置且互相平行,则能传递较大功率的情况是( )
![](https://img.xkw.com/dksih/QBM/2018/5/27/1954478767472640/1974253113581568/STEM/f048d08b3b31404386ae93a3c41fd4bb.png?resizew=192)
![](https://img.xkw.com/dksih/QBM/2018/5/27/1954478767472640/1974253113581568/STEM/f048d08b3b31404386ae93a3c41fd4bb.png?resizew=192)
A.A轮逆时针转且皮带L较宽 |
B.A轮逆时针转且皮带L较窄 |
C.A轮顺时针转且皮带L较宽 |
D.A轮顺时针转且皮带L较窄 |
17-18高三·全国·强基计划
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如图所示为某一皮带传动装置,M是主动轮,其半径为
,M′半径也为
,M′和N在同一轴上,N和N′的半径都为
.已知主动轮做顺时针转动,转速为n,转动过程中皮带不打滑.则下列说法正确的是
![](https://img.xkw.com/dksih/QBM/2018/4/24/1931136529948672/1932451884654592/STEM/b7053e8a-84c9-4b11-8110-efa10c25cce2.png?resizew=324)
![](https://img.xkw.com/dksih/QBM/2018/4/24/1931136529948672/1932451884654592/STEM/b7053e8a-84c9-4b11-8110-efa10c25cce2.png?resizew=324)
A.N′轮做的是逆时针转动 |
B.N′轮做的是顺时针转动 |
C.N′轮的转速为 |
D.N′轮的转速为 |
如图为某一皮带传动装置。主动轮的半径为r1,从动轮的半径为r2.已知主动轮做逆时针转动,转速为n,转动过程中皮带不打滑。则从动轮将做( )
![](https://img.xkw.com/dksih/QBM/2020/2/5/2392496941981696/2392724282728448/STEM/0ae85800-8e6f-4dee-9522-95e31466d68f.png?resizew=238)
![](https://img.xkw.com/dksih/QBM/2020/2/5/2392496941981696/2392724282728448/STEM/0ae85800-8e6f-4dee-9522-95e31466d68f.png?resizew=238)
A.顺时针转动,转速为 |
B.逆时针转动,转速为 |
C.顺时针转动,转速为 |
D.逆时针转动,转速为 |
如图所示的传动装置中,A轮顺时针转动,并通过皮带带动B轮转动(皮带不打滑)。a、b分别是两轮边缘上的点,它们的线速度大小分别为va、vb下列判断正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/1/11/2892242454880256/2892401350541312/STEM/f08378b3-1630-4dae-837e-47d88d796f4a.png?resizew=278)
![](https://img.xkw.com/dksih/QBM/2022/1/11/2892242454880256/2892401350541312/STEM/f08378b3-1630-4dae-837e-47d88d796f4a.png?resizew=278)
A.B轮顺时针转动 | B.B轮逆时针转动 |
C. | D. |
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