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Shaft 2 B5 {- J* `8 R0 d
Solid shafts.6 X7 M3 z& e' t
As a machine component a shaft is commonly a cylindrical bar that supports and rotates with devices for receiving and delivering rotary motion and torque .The crankshaft of a reciprocating engine receive its rotary motion from each of the cranks, via the pistons and connecting roads (the slider-crank mechanisms), and delivers it by means of couplings, gears, chains or belts to the transmission, camshaft, pumps, and other devices. The camshafts, driven by a gear or chain from the
$ b8 P' {" d9 C) h- z# Bcrankshaft, has only one receiver or input, but each cam on the shaft delivers rotary motion to the valve-actuating mechanisms. | 
發表于 2011-6-7 11:54:27
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