Cam Analysis Apparatus Model MT 013

Sci-tech Cam Analysis Apparatus Model MT 013 allows the dynamic investigation of cam mechanisms, as used in motors for actuation of the valves. The cam mechanism consists of 4 interchangeable cam plates and 2 different tracers. A mass and a spring are used to simulate the valve. In order to demonstrate the so-called “valve wobble”, the spring rate, mass and speed are adjustable within broad limits. A plotter allows the actual lift curves to be recorded. The open design allows the observation of every detail of the movement process. A stroboscope (not supplied) can be used to provide a particularly impressive view of the movement process and lift. The experimental unit is intended for demonstration purposes in technical education. It is not suitable for use as a test stand for fatigue testing. With optional Data Acquisition software & interface, it can enable plotting of curve and with LABVIEW clear observation of the experiment’s readings and calculations.

Size: 80cm x 60cm x 50cm (LxWxH)
Weight: 45 kg

Item Description

Features

  • 4 different cams, 2 different tracers1
    * Influence of spring rigidity and moving mass1
    * Plotting of lift curves1
    * Excellent observation of movement process
  • Optional Computer interface & Data Acquisition Software

Sci-tech Cam Analysis Apparatus Model MT 013 allows the dynamic investigation of cam mechanisms, as used in motors for actuation of the valves. The cam mechanism consists of 4 interchangeable cam plates and 2 different tracers. A mass and a spring are used to simulate the valve. In order to demonstrate the so-called “valve wobble”, the spring rate, mass and speed are adjustable within broad limits. A plotter allows the actual lift curves to be recorded. The open design allows the observation of every detail of the movement process. A stroboscope (not supplied) can be used to provide a particularly impressive view of the movement process and lift.

The experimental unit is intended for demonstration purposes in technical education. It is not suitable for use as a test stand for fatigue testing.

With optional Data Acquisition software & interface, it can enable plotting of curve and with LABVIEW clear observation of the experiment’s readings and calculations.

Technical Specifications

Specifications [1] Experimental unit for investigation of cam mechanisms [2] 4 cams: tangent, hollow cam, 2 circular cams with different head radius [3] Tappet with 2 different tracers: flat or roller tappet [4] 3 interchangeable restoring springs [5] Electric motor with variable speed [6] Moving mass with can be lifted with 5 additional weights; attached to tappet [7] Mechanical drum plotter with plotting spring and coated paper   Technical Specifications Three-phase asynchronous motor with frequency converter – power: 250W – speed: 60…670min-1 Cams – 15mm lift – opening angle: 140° Spring rigidity – hard: 5.026N/m – medium: 2.601N/m – soft: 613N/m Masses – additional weight: 200g – tappet: 530g – flat tappet: 93g – roller: 20g Plotter: synchronous belt drive Optical speed sensor   Experiments

  1. Comparison of different cam forms Lift curves for non-matching tracer Lift curve for skipping tracer Determination of limit speed and comparison with theory Influence of moving mass Influence of restoring spring rigidity

    Scope of Delivery 1 experimental unit 1 display and control unit 4 cams 2 tracer 3 restoring springs 3 blocks of plotter paper 1 combination wrench 1 hexagon screwdriver, short 1 set of instructional material

Model Number

MT 013