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Blog Entry# 424919
Posted: May 14 2012 (14:12)
6 Responses
Last Response: May 14 2012 (19:18)
6 Responses
Last Response: May 14 2012 (19:18)
Courtesy Allan Rickmann
1 Posts
what you see in the middle of the 2 tracks is the rack and the pinion is under the train/coach.
Now the pinion clutches on to the rack and due to the rotational motion(teeth is designed as such), the rack moves ahead. In short rotation motion is converted into forward motion.
Now the pinion clutches on to the rack and due to the rotational motion(teeth is designed as such), the rack moves ahead. In short rotation motion is converted into forward motion.
in a rack railway, the rotation of a pinion mounted on a locomotive or a coach engages a rack between the rails and pulls a train along a steep slope.
This system helps trains to negotiate steep gradients, the train is fitted with a pinion which is engaged with the rack(like gear teeth getting locked) between the rails which maintains the trains momentum constantly and reduces slip of wheels on rail by gripping tight!! We have this system only in ooty in India, in the Nilgiri Mountain railway.