Trigonometry and Quick Return System

UNIVERSITI TENAGA LOKAL

COLLEGE OF ENGINEERING

SECTION OF MECHANICAL ENGINEERING

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MEMB331 - MACHINE STYLE AND CAD LABORATORY

EXP. TITLE: Crank And Placed Lever Quick Return Movement Experiment

AUTHOR: FAKHRUL RAZI BIN ZAHARI

SID: ME082100

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INSTRUCTOR: ………………………………………………. |Performed Date |Due Date* |Submitted Time | | | |

ABSRTACT

A mechanism is known as a simplified model, usually as a line diagram, that is used to reproduce exactly the motion occurring in machine. Some machine used in industry utilized the crank and placed lever speedy return mechanism in the machine operation. Therefore in this test we are to look at the efficiency of this speedy return device. The apparatus used for this experiment also referred to as crank and slotted lever quick come back mechanism products by Norwood Instrument Limited. The various regions of this device are called backlinks or factors. The quick return is definitely caused by the variation of length of the links on its own. This try things out is completed by rotating the crank to get a revolution (360В°). Then the slider position value is browse and registered for each 10В° increment. Finally the theoretical slider location value and slider speed value and can be computed for examining purpose.

GOAL

The objective of this experiment is to investigate the kinematics movement of a Turn and Slotted Lever Quick Return device. The analysis is to show that it is certainly a quick returning mechanism and to evaluate the increase in efficiency this would present if put on a equipment tool.

Data, Observations, Analysis & Outcomes

|Crank Position, Оё ( |Experimental Slider Position, back button (|Theoretical Slider Position, back button |Percentage Problem ( %) |Slider Speed, v ( | |degree ) |mm ) |( mm ) | |mm/degree ) | |0 |69 |70 |1. 43 |0 | |10 |78 |78. 355 |0. 45 |0. 8 | |20 |85 |86. 578 |1. 82 |0. on the lookout for | |30 |94 |94. 532 |0. 56 |0. 8 | |40 |100 |102. 078 |2. '04 |0. six | |50 |107 |109. 071 |1. 9 |0. 7 | |60 |113 |115. 356 |2. apr |0. several | |70 |119 |120. 765 |1. 46 |0. 5 | |80 |124 |125. 116 |0. fifth 89 |0. 4 | |90 |127 |128. 209 |0. 94 |0. 4 | |100 |129 |129. 82 |0. 63 |0. a couple of | |110 |129 |129. 714 |0. 55 |0...

References: • Robert D Norton, Equipment Design – An Integrated Strategy, 3rd Copy, Mc Graw Hill, 2006.

• Robert L Norton, Design of Machines, 3rd Release, Mc Graw Hill, 2005.

• Lab Manual Machine Design and CAD Lab, MEMB331, Universiti Tenaga Lokal, 2006

BOUT

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Physique 2: Turn and slotted lever quick return mechanism equipment

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