MechanismLongmans, Green, and Company, 1905 - 408 страници |
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Страница 2
... crank shaft , to which is rigidly attached the crank arm and pin . The frame is usually considered as fixed , and the motions of all the other pieces are referred to it ; but the frame itself might move , as , for example , in a ...
... crank shaft , to which is rigidly attached the crank arm and pin . The frame is usually considered as fixed , and the motions of all the other pieces are referred to it ; but the frame itself might move , as , for example , in a ...
Страница 3
... crank shaft should continually rotate , it is enclosed within circular bearings which , like the guides , are rigidly attached to the frame ; to transmit the motion from the crosshead to the crank pin , each is attached to the ...
... crank shaft should continually rotate , it is enclosed within circular bearings which , like the guides , are rigidly attached to the frame ; to transmit the motion from the crosshead to the crank pin , each is attached to the ...
Страница 6
... crank shaft ; and each of these is common to two pairs , as the following table shows : - crank arm and shaft Frame crosshead connecting - rod sliding pair turning pair turning pair turning pair The chain , in fact , consists of one ...
... crank shaft ; and each of these is common to two pairs , as the following table shows : - crank arm and shaft Frame crosshead connecting - rod sliding pair turning pair turning pair turning pair The chain , in fact , consists of one ...
Страница 13
... crank shaft ; and four pairs , namely , three turning pairs and one sliding pair . No element contains more than two pairs , so that the number of pairs to be taken is four . Hence p 4 and ε = 4 , thus satisfying the formula . As a more ...
... crank shaft ; and four pairs , namely , three turning pairs and one sliding pair . No element contains more than two pairs , so that the number of pairs to be taken is four . Hence p 4 and ε = 4 , thus satisfying the formula . As a more ...
Страница 47
... crank shaft A is a double - threaded worm gearing into a worm wheel of 50 teeth ; keyed to the worm- wheel shaft is a spur wheel of 224 inches diameter pitch circle , and very approximately 31 - inch pitch , which drives another wheel ...
... crank shaft A is a double - threaded worm gearing into a worm wheel of 50 teeth ; keyed to the worm- wheel shaft is a spur wheel of 224 inches diameter pitch circle , and very approximately 31 - inch pitch , which drives another wheel ...
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actuating addendum circle angle angular velocity angular-velocity ratio arc of approach attached axis B.Sc belt bevel wheel block centripetal acceleration circular arc common normal connecting rod connecting-rod coupler crank arm crank pin crank radius crank shaft crosshead Crown 8vo curve cutter cutting cycloidal cylinder described diameter direction displacement distance draw driving ELEMENTARY ellipse engine equal equivalent crank fixed centre gear horizontal Illustrations intersect involute keyed kinematic lathe leading screw length lever line of centres line of stroke machine mandrel mean position meshes move number of teeth obliquity obtained oscillating P₁ P₁A P₂ parallel motion perpendicular pinion piston pitch circle pitch point plane pulley rack radii reciprocating piece relative represent the velocity revolution revolutions per minute roller rolling circle shape shown in Fig sliding slot spindle spur wheel straight line tool tooth trace transmitted turning pairs valve velocity diagram velocity ratio vertical whilst worm wheel
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