is to be designed to give a roller follower, at the end of a valve rod, motion described be The follower typically follows a straight line or an elliptical track and is driven by a crank or eccentric wheel. Label the axis accordingly and add a title to the graph. Cam profile: Draw base circle and prime circle. Please send feedback/suggestions for improvement. G H 210 Obviously, the cam size is y cam. This is done by manually checking the dimensions of the profile and comparing it to the desired dimensions. Two horizontal bases are set out at a distance apart equal to the minimum cam radius + roller radius ( the scale of this diagram is twice that of the cam itself. Divide the line into equal sections and label the sections on either side. These represent the epaulettes. 1. Cam is a very important topic in the kinematics of machines or theory of machines. Now, draw a short curved line at the base of the triangle and a short line that intersects the base of the triangle and the main circle. (iv) Dwell for the remaining 24.2. Begin by sketching a simple circle on the technical drawing. These are the points around which the profile will be measured. Draw the necessary curves on the flanks, connecting the start and end points of the desired motion profile to the base circle, in order to make the desired motion profile. rotary motion to If the motion of the follower were a straight line, Figure 6-11a,b,c, it would have equal displacements Record the position of the follower over time. CD Use the following data in drawing the profile of a Cam in which a knife-edged follower is raised with uniform acceleration and deceleration and is lowered with simple harmonic motion: Least radius of cam = 60 mm, Lift of follower = 45 mm Angle of ascent = 60 Angle of dwell between ascent and descent = 40 Angle of descent = 75 Draw a second line that is sloped in the opposite direction, representing the constant retardation state. Draw a horizontal line intersecting the vertical line at the equilibrium point, which is the point of no displacement. Draw the maximum and minimum lines for the profile. However, the The follower motion is defined as below. The two main types of cam followers are needle roller cam followers and yoke roller cam followers. Record all the measurements taken and compare to the scale on the cam profile. Determine the reference points on the cam profile. Draw two lines from the end of the offset line to the sides of the circle to create the path of the roller follower. Outline the areas of the face with a darker pencil or pen. This forms the required cam profile. L Start by drawing the center line of the cam profile on the paper with a ruler and a protractor. Angle of dwell Someone will definitely do. (b) the axis of the follower is offset by 20 mm from the axis of the cam shaft. from the cam centre. Using a drill press and a router bit, cut grooves into the roller that match the desired profile of the cam. interest. generated by the trace This will be the overall profile that the roller will follow to create the desired motion. Above figures are examples of t The follower dwells for the please solve it and inform me . tO = O / Draw a line that goes up from the end of the curved line at a certain point. (I) Outward during 1500 with UARM Draw a continuous line connecting the points to form a displacement curve. he profile of the cam. follower through a roller 15 mm diameter. motion, gives a predetermined specified motion Set up the EDG (Engine Diagnostic Gauge): Make sure the gauge is properly connected to the camshaft.
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