Code: APE-0013
Gear Trainer Demonstrator Apparatus.
Most road vehicles are fitted with variable-ratio gearboxes as a means
of obtaining the best power application under varying road conditions.
Fundamentally the gearbox consists of gear wheels of different sizes,
which may be engaged as required. The sliding mesh box, although it is
still used on heavy commercial vehicles, is seldom found on modern cars,
but its basic construction and operation are important from the
student's point of view as it represents the basic layout from which
most modern gearboxes have been developed.
The gearbox has been designed to represent a typical arrangement of a simple three forward ratio and reverse sliding mesh box.
The unit may be used for classroom demonstrations and by students in the
laboratory. Pulleys fitted with protractors are attached to the input
and output shafts so that the student may determine and verify velocity
and torque ratios. The gearbox can be coupled to the Overdrive and
Differential to represent a simple transmission system.