The mechanism demonstrates the relationship between the ratio of the number of teeth on spur gears and the transmission ratio of gears. With straightforward experiments, the torque conversion in gear wheel pairs and the efficiency of a gear unit are investigated. The model is intended for wall mounting. Alternatively, it can be attached to the TM 090 mounting frame. The well-structured instructional material outlines the technological fundamentals and provides a step-by-step guide through the experiments.
Learning Objectives / Experiments
Learning the key variables and correlations of a spur gear: - Velocity ratios of spur gears - Gear with intermediate wheel or two-stage gearing - Influence of friction on transmission - Determining efficiency
[1] Demonstration and student experimentation unit on the mode of operation and function of toothed gearing mechanisms [2] 4 galvanised steel gear wheels [3] 2 anodised aluminium cable pulleys [4] 2 sets of weights [5] Ball bearing-mounted gear wheels and pulleys [6] Anodised Aluminium base plate [7] l x w x h 350x70x150mm
Technical Data
4 gear wheels: - 2x D=126mm, 84 teeth - 2x D=42mm, 28 teeth - modulus: m=2mm Driving pulley radius: 35mm Weights: - 2x 1N suspended - 2x 0.25N - 1x 0.5N - 2x 1N - 2x 2N - 2x 2.5N Base plate: l x w x h: 350x150x10mm
Dimensions and Weight
l x w x h : 350 x 70 x 150 mm Weight : approx. 5 kg
Scope of Delivery
1 gear unit, mounted on base plate 2 sets of weights 1 set of instructional material
