DESCRIPTION
Technical Description
TM 124 permits investigations of the torques and the efficiency of the gear unit. The transmission ratio of the gear can be determined. Students learn the basic terminology of gearing in a simple manner: numbers of teeth; modulus; reference circle and axle base.
The worm gear wheel and worm are ball bearing-mounted. The forces are generated by the sets of weights and can be quickly and easily varied.
The model is intended for wall mounting. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.
Learning Objectives / Experiments
Learning the key variables and correlations of a worm gear
- investigating: transmission ratio, torque, friction and self-locking
- determining efficiency
FEATURES
Specification
[1] demonstration and student experimental unit on the setup and principle of a worm gear
[2] bronze worm gear wheel
[3] steel worm
[4] 2 Aluminium side drums
[5] 2 sets of weights
[6] worm, worm gear wheel and pulleys ball bearing-mounted
[7] anodised aluminium base plate
Technical Data
Side drum diameter
- on worm shaft: d=40mm
- on worm gear wheel shaft: d=120mm
Worm drive
- axle base: 80mm
- transmission ratio: 30:1
- modulus: m=4mm
- number of gears: 1
- power transmission: 10
Weights on worm side
- 1x 50N
- 1x 20N
- 2x 10N
- 1x 10N (suspended with balance mass)
Weights on worm gear wheel
- 1x 5N
- 4x 2N
- 1x 1N
- 1x 0,5N
- 1x 0,5N (suspended)
Base plate
- LxWxH: 250x200x12mm
Dimensions and Weight
LxWxH: 250x150x200mm
Weight: approx. 22kg
Scope of Delivery
1 gear unit, mounted on base plate
2 sets of weights
1 set of instructional material
