Cranks Sorry arh last week never post, cos not free. Ok so today we are going to discuss about cranks. A crank moves in linear motion, back and forth, is transferred to a circular motion or vice versa. Cranks have many uses and they can be found in some toys as part of a mechanism or in serious machinery such as factory robot arms. Cranks also have sub-groups like:
-Crank & Slider -Crank Shaft
Crank & Slider These types of cranks are usually seen in steam trains. When the slider moves left, it would turn the wheel for 180 degrees first, then when it moves right, the wheel will complete the other 180 degrees.
Crank shaft The crankshaft, is the part of an engine which translates reciprocation linear piston motion into rotation. Thats all for today, we'll talk about other mechanisms next week. Got to go do my homework =D.
The Time Euu Post;
4:16 AM
Tuesday, January 8, 2008
When we write or read about mechanical toys, we must first understand it first. After much research, i found out CAM toy is not a mechanical toy! A CAM is a part of a rotating wheel or shaft (mechanism) that comes in contact with a lever at one or more points on its circular path. It also consists of 2 parts: -Follower -Cam profile
There are also other types of followers that serves many different purposes. For example:
Roller Follower
The roller follower is a bearing with a high-rigidity shaft and a built-in needle bearing for linear motion.
Flat Follower
Pointed Follower
Other than CAM mechanism, there are others:
Cranks
Pulleys
Gears
Ratchets
Levers
Logging out will update every week tata!
The Time Euu Post;
4:02 AM
Profile
NAME: Moses Tsi
SCHOOL: Hua Yi Sec School
Occupation: Student under DnT training
CCA: Infoccom
![[CAM.gif]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjgQKkXVhfhKi4kHnlgT-p20ZDk_mqmejE6FKa9Ulah7uUbCeUpIvdE64o1eCCdbesQ5QzF5rLq35eZw3QoDVI4uIYLFNp0VmOMv1M_Un91WR7w9CVTi8C0MPBEQrm5g6xGEzsj96zyIA/s1600/CAM.gif)
![[roller+cam.gif]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPVXhdWqeb7GSZSuqskbKVp1NBw1zI4gpYyerDD10jgxcmi9D9MQrzgVnZPCSt6BA-MsUZbgpPmFsDSjqiI83MHRocqSbKZk6eWHfOg2g2NnxAFb9w27D-u_39pz0v09LhoIJV8u4Gn2Q/s1600/roller+cam.gif)
The roller follower is a bearing with a high-rigidity shaft and a built-in needle bearing for linear motion. ![[flatcam.gif]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh05u2doBU9rW7zSl1dJUDB7z5OWRM-CSZG8m-wOiGfZQ9ynVSscjz41pt0160jH7bM8_8aQrEEd_ASCWsGSdrXL091bq24xYs5Hvyq013SCleokzGdAh5RIqtDKw59Xju5hmoBOIZufBI/s1600/flatcam.gif)
![[point,+knife+cam.gif]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiAIYlU4EHSZpvy0gKXgCqXwy3orLZcqkh9ZGWclRUFv5ZjhZx-z3RtMnF1QzbV11FdRuMWMiDeWqTiyM7Jqy7lBS61pcoE23sndILX0Q45GzqgGnu_ZrDskbQRBLvJwSDiXgAd5MIzgM/s1600/point,%2Bknife%2Bcam.gif)