TOM 12 BALANCING OF RECIPROCATING MASSES

DESCRIPTION

This demonstration type of Balancing of reciprocating Masses apparatus consists of a model of a 4 - cylinder engine mounted on a circular cantilever. The Motor, which is connected below the model, drives the crankshaft, which is divided, in four sections, by using belt & pulley system. These cranks through connecting rods operate Pistons made of M.S. and these pistons have a tapping on its top end so as to add additional masses. The entire assembly is mounted on a Sturdy bracket, which is fixed to the main frame. The effect of unbalance due to the reciprocating masses is observed on the vibrations of the frame. The balancing of In-line 4 Cylinder engine with identical. The bending of support arm will be due to unbalanced forces and twisting of the arm will be due to unbalanced couples. Strain gauges are mounted on the cantilever beam to measure the lateral and traverse vibrations.


RANGE OF EXPERIMENTS

  • • To study and observe the effect of unbalanced reciprocating masses using a flat crankshaft. (Inline Engine)
  • • To study the effect of unbalanced reciprocating masses by changing crankshaft angles.
    • • Strain Gauge Indicator with strain gauges mounted on the cantilever to observe the unbalanced forces and couples.
  • • Reciprocating parts can be demonstrated with the help of this model.


UTILITIES REQUIRED

  • • A Four-cylinder engine model.
  • • Motor of suitable capacity with Belt and Pulley arrangement for fixing the above model (Speed - 3000 rpm)
  • • A circular cross sectional cantilever for mounting the entire assembly of Model and Engine
  • • Instrumentation consists of RPM Indicator, Strain Gauge Indicator, On/Off switch etc

    • An instruction manual is supplied with the apparatus describes theory involved, range and Producer of experiments.


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