four different transmissions can be configured

Description:

• The planetary gear is a special type of gear drive, in which the multiple planet gears revolve around a centrally arranged sun gear.
• The planet gears are mounted on a planet carrier and engage positively in an internally toothed ring gear.
• Torque and power are distributed among several planet gears.
• Sun gear, planet carrier and ring gear may either be driving, driven or fixed.
• Planetary gears are used in automotive construction and shipbuilding, as well as for stationary use in turbines and general mechanical engineering.
• The GL 212unit allows the investigation of the dynamic behaviour of a two-stage planetary gear.
• The trainer consists of two planet gear sets, each with three planet gears.
• The ring gear of the first stage is coupled to the planet carrier of the second stage.
• By fixing individual gears, it is possible to configure a total of four different transmission ratios.
• 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.
• The weight is caught by a shock absorber.
• A transparent protective cover prevents accidental contact with the rotating parts.
• To be able to determine the effective torques, the force measurement measures the deflection of bending beams.
• Inductive speed sensors on all drive gears allow the 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.
• Effective mass moments of inertia are determined by the angular acceleration.

Technical Details:

Specification:

• investigation of the dynamic behaviour of a 2-stage planetary gear
• three planet gears per stage
• four different transmission ratios possible
• gear is accelerated via cable drum and variable set of weights
• weight raised by hand crank; ratchet prevents accidental release
• clamping roller freewheel enables free further rotation after the weight has been released
• shock absorber for weight
• transparent protective cover
• force measurement on different gear stages via 3 bending bars, display via dial gauges
• inductive speed sensors
• GUNT software for data acquisition via USB under Windows 8.1, 10

Technical Data:

• 2-stage planetary gear:
  • module: 2mm
  • sun gears: 24-tooth, d-pitch circle: 48mm
  • planet gears: 24-tooth, d-pitch circle: 48mm
  • ring gears: 72-tooth, d-pitch circle: 144mm
• Drive:
  • set of weights: 5…50kg
  • potential energy: 245,3Nm
• Load at standstill:
  • weight forces: 5…70N
• Measuring ranges:
  • speed: 0…2000min^-1
• 230V, 50Hz, 1 phase
• 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase
• UL/CSA optional

Dimensions & Weight:

• L x W x H: 950x600x1700mm
• Weight: approx. 150kg

Required for Operation:

• PC with Windows

Learning Objections/Experiments:

• determine the transmission ratio for a locked gear
• measure transmitted forces for a locked gear
• gear acceleration under constant driving torque
• influence of the transmission ratio
• determine reduced mass moment of inertia
• conversion of potential energy into kinetic energy
• determine friction
• determine gear efficiency

Scope of Delivery:

• 1 trainer
• 2 sets of weights
• 1 GUNTsoftware + USB cable
• 1 set of instructional material

Features:

• two-stage planetary gears with three planet gears each
• four different transmissions can be configured
• bending beams to measure force
• inductive speed sensors for speed-time diagrams to determine the angular acceleration

Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.