The scotch yoke is a reciprocating motion mechanism, converting the linear motion of a slider into rotational. Report of design and development of multi purpose mechanical machine. Pure simple harmonic motion is produced by the scotch yoke mechanism when. Design and simplification of multipurpose cutter using scotch yoke. The scotch yoke mechanism to be consider for more efficient because of the rotational motion to spent more time at high point of it rotate than piston part. A project report on implementation and functioning of. The location of the piston versus time is a sine wave of constant.
Aug 21, 2009 the scotch yoke, also spelled scotch yoke and scotch yoke, is a mechanism for converting the linear motion of a slider into rotational motion or viceversa. The rolling scotch yoke mechanism rsym, a variation of the scotch yoke mechanism, is developed in this work. Comparing simple crankslider and scotch yoke mechanisms. Aim of the project to design and manufacture a working model of scotch yoke mechanism. The scotch yoke also known as slotted link mechanism is a reciprocating motion mechanism, converting the linear motion of a slider into rotational motion, or vice versa the piston or other reciprocating part is directly coupled to a sliding yoke with a slot that engages a pin on the rotating pa. The masses of working fluid used in 1 bar charge pressure from engines with bell crank, slider crank, rhombic and scotch yoke drive mechanism were 0.
The scotch yoke mechanism is a reciprocating motion mechanism, converting the linear motion of a scotch yoke mechanism is a. The slotted link mechanism is used for converting the linear motion of a slider into rotational motion or viceversa. The slider plate carries a slot ab in which a slider block q as centre, and drives the slider block q. Pdf fabrication and usage of multipurpose mechanical machine. Problem statement to convert rotary motion into reciprocatory motion in a simple harmonic manner. Scotch yoke mechanism is a simple type of mechanism which converts circular motion into reciprocating motion as discussed in construction part above. To learn the construction and working of slotted link or scotch yoke mechanism. Vijaykumar 1assistant proffessor, department of mechanical engineering gnanamani college of technology, namakkal tamilnadu, india 2,3,4,5 ug students department of mechanical engineering gnanamani college of technology, namakkal tamilnadu, india. Fabrication of dual side shaper machine using scotch yoke. Until recently, scotch yoke mechanisms have been utilized only in compressors of relatively small capacity.
Introduction the scotch yoke is a mechanism for converting the. Pdf design of scotch yoke mechanisms with improved. Volvo annual report 2011 pdf pdf routeur cisco avec 2 interface wan 1941 second course electronic warfare pdf drilling rig operations pdf. The frictional losses between pin and the yoke are neglected. Jude joseph john 311012114041 kiran kumar 311012114045 raja k 311012114046. Design and fabrication of hacksaw machine using scotch yoke. The scotch yoke is a mechanism for converting the linear motion of a slider into rotational motion or viceversa. The widest usage of this mechanism is in pumping systems for oil, gas and other liquids. This report summarizes the results of the hardware assessment in the form of a failure modes, effects, and diagnostic analysis fmeda of the g series scotch yoke actuators. To investigate the motion of slotted link scotch yoke mechanism objective. The power is supplied to the dc motor, shaft and crank attached to shaft start rotating. Development of multi purpose machine with scotch yoke mechanism introduction multioperation machine as a research area is motivated by questions that arise in industrial manufacturing, production planning, and computer control. A good place to start is with the mechanism called the scotch yoke which converts a constant rotation into a perfectly sinusoidal motion known as simple harmonic motion.
The scotch yoke is a reciprocating motion mechanism, converting the linear motion of a slider into rotational motion, or vice versa. Apr 15, 2017 shaper machine project work report pdf 1. Double acting hacksaw using scotch yoke mechanism report pdf download. The scotch yoke mechanism, mye, designed by edibon, is an example of slidercrank mechanism.
Dynamic analysis in terms of displacement, velocity and acceleration. Scotch yoke mechanism animation, advantages and application. Scotch yoke mechanism converts rotary motion into translatory motion which is simple harmonic in nature. Pdf designing and fabrication of double acting hacksaw machine. Development of multi purpose machine with scotch yoke mechanism. Pdf scotchyoke mechanism for a syringe pump a case study. The simple crankslider and the scotch yoke called the donkey crosshead in great britain are two mechanisms for transforming between rotary and linear motion.
Report generation, user progression monitoring and statistics. In this study, thermodynamic and kinematic analyses of bell crank, slider crank, rhombic and scotch yoke drive mechanisms were performed for a beta type stirling engine with a swept volume of 365 cm3. This report describes the general theory of dynamics of fourbar linkage with clearances at all turning pairs, using a continuous contact model. A failure modes, effects, and diagnostic analysis is one of the steps to be taken to achieve functional safety certification per iec 61508 of a device. The scotch yoke is also known as slotted link mechanism. Otherwise, you can download a template from many free email template providers. This demonstration compares the sliding joint kinematicsthe displacements velocities and accelerationsproduced by the two mechanisms as functions of the common input crank angle.
Shadab husain, mohammad shadab sheikh presents paper on can crusher machine using scotch yoke mechanism. This paper addressed the relationship between linear velocity of a scotch yoke mechanism during motion. Scotch yoke mechanism is a type of a reciprocating motion. Design and fabrication of can crusher impact factor.
The piston or other reciprocating part is directly coupled to a sliding yoke with a. The scotch yoke also known as slotted page link mechanism is a reciprocating motion. For the application discussed herein, a scotch yoke mechanism has been employed in a line of four cylinder hermetic compressors ranging in. Scotch yoke mechanism project for mech, production. Shaper machine project work report pdf linkedin slideshare. It is a simple mechanism, the rotary motion of pin convert into linear motion. As the crank rotates the pin slides inside the yoke and also moves the yoke forward. Scotch yoke mechanism rotation around a fixed axis. Scotch yoke the wheel revolves at radianssec and the pin forces the yoke to move up and down. The rsym is not a mechanism by rigorous definition because the output position is not uniquely determined by the input position, however has several advantages over other reciprocating mechanisms. Unlike a conventional scotch yoke mechanism whose crank pin slides relative to the yoke. The reciprocating part is directly coupled to a sliding yoke with a slot that engages a pin on the rotating part. Consider a large automotive garage with specialized shops. It is made of aluminum and consists of a rotary element, called crank, with a graduated disc.
A model of scotch yoke mechanism is to be used for study. For example, the side rods of a locomotive may have scotch yokes to permit vertical motion of intermediate driving axles. A prototype of scotch yoke mechanism scotch yoke 1. The scotch yoke mechanism mye, designed by edibon, is an example of. Inversions of single slider crack mechanismrotary, pendulum, quick return mechanism. Double acting hacksaw using scotch yoke mechanism report. To get a practical exposure of machine tools and other manufacturing equipments. Cost estimation objective the objective of this project is to design and fabricate a model of double acting.
Iosrjournal of mechanical and civil engineering iosrjmce eissn. The scotch yoke mechanism which is attached with the main drive shaft directly attached then it is used for different operation. Scotch yoke mechanism electric motor electrical equipment. Detail ppt on scotch yoke mechanism with dimenstions. The rolling scotch yoke mechanism applied to a small air. The engineering case program originated at stanford university in 1964 with the support of the national science foundation. This case study is part of the american society for engineering education asee engineering case library ecl, which can be downloaded in full as a 300mb zip file. Experimental evaluation of a scotchyoke compressor mechanism. The pin p slides in the slot and the yoke oscillates up and. The scotch yoke mechanism also known as slotted link mechanism is a reciprocating motion mechanism, converting the linear motion of a slider into rotational motion, or vice versa.
In this lab report in this lab report u can find the details of scotch yoke mechanism, its working, its applications and its efficiency. I just added sliding pin on crank wheel to adjust sliding motion as per requirement. Scotch yoke mechanism animation with explanation youtube. A car may require the following work, replace exhaust system, align wheels, and tune up. The pin placed eccentrically is assumed to be forged or casted along with the scotch to reduce losses.
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