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GL 210 Dynamic behaviour of multistage spur gears

FEATURES:

 

  • Single-stage, two-stage or three-stage spur gear with distributed rotational inertia1
  • Drive via cable drum and variable set of weights
  • Inductive speed sensors on all shafts
  • GUNT software for data acquisition

DESCRIPTION

Technical Description

Gears are employed as a link between driving machine and driven machine. They are used to vary torque and speed and to change direction. The aim of dynamic gear analysis is an understanding of the motion sequences and the influence of inertia.

The GL 210 unit is used to study the dynamic behaviour in single-stage, two-stage and three-stage spur gears during transient operation.

The trainer includes four parallel shafts, three drive wheels and three drive gears. Coupling pins can be used to couple the shafts such that different gear stages can be realised. A flywheel may be attached to each shaft in order to increase the rotational inertia. The gear is accelerated via a cable drum and a variable set of weights. The set of weights is raised via a crank. A ratchet prevents the weight from accidentally escaping. A clamping roller freewheel enables free further rotation after the weight has been released. A hand brake allows smooth deceleration. The transparent protective cover with safety lock prevents accidental contact with the rotating parts.

Inductive speed sensors on all drive gears allow the rotational speeds to be measured. The measured values are transmitted directly to a PC via USB. The data acquisition software is included. The angular acceleration can be read from the diagrams.

The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.


Learning Objectives / Experiments
- determining the angular acceleration on gears 
- determining the mass moment of inertia of the gear
- determining the friction 
- determining the gear efficiency

FEATURES

Specification
[1] investigation of the dynamic behaviour of 1-stage, 2-stage or 3-stage spur gears
[2] 4 shafts, 3 drive wheels and 3 drivegears
[3] shafts can be coupled by coupling pins
[4] optional attachable flywheels to increase the rotational inertia on each shaft
[5] gear is accelerated via cable drum and variable set of weights 
[6] weight raised by hand crank; ratchet prevents accidental release 
[7] clamping roller freewheel enables free further rotation after the weight has been released
[8] gear decelerated via hand-operated brake 
[9] transparent protective cover with safety lock and protective grill for the set of weights 
[10] inductive speed sensors on all drivegears
[11] GUNT software for data capture via USB under Windows Vista or Windows 7


Technical Data
3-stage gear with 4 shafts
- transmission ratio per stage: i = 4:1
- overall transmission ratio: i = 64:1
Gear width: 16mm, module 2mm
Drive
- set of weights: 5...50kg
- drop height: max. 0,65m
- max. potential energy: 320Nm

Measuring range
- speed: 0...2000min-1


Dimensions and Weight
LxWxH: 970x760x1550mm
Weight: approx. 155kg Required for Operation 230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase


Scope of Delivery
1 trainer 
1 set of weights
1 CD with GUNT software + USB cable
1 set of instructional material

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