Epicyclic Gear Train Apparatus Model MT 131

Sci-tech Epicyclic Gear Train Apparatus Model MT 131 consists of two standard epicyclic gear trains. Each gear train consists of a sun gear in the centre, three planet gears, a planet linkage and an internal or ring gear. The sun gear, ring gear and planet carrier all rotate about the same axis. The planet gears are mounted on shafts that turn in planet carrier and meshes with both the sun gear and the ring gear. Pulleys fitted with protractors are attached to the input and output shaft so that torque and velocity ratios may be determined.

Torques can be applied to the shaft by adding weights on cords wrapped on the pulleys. Bearings are used in the entire unit to minimize friction losses.

Model MT 131, can be operated in one a variety of modes. Locking pins are used to holding different parts of the apparatus in position. This gives the user different options on gear ratios that can be applied between the input and output shafts. By changing the combinations between the first and second epicyclic gear sets a wide range of ratios and different output directions can be produced. Efficiencies can be calculated for the units operation as well as theory tables given for the different gear combinations.

Size: 120cm x 60cm x 60cm (LxWxH)
Weight: 25 kg

Item Description

Features

  • Wall Mounted Dual Epicyclic Gears
  • Plastic gears for smooth operation and noise reduction
  • Gear ratios can be adjusted
  • Locking devices to stop rotation while setting up weights
  • Transparent Gear Guards for safety and visibility
  • All weights supplied

Sci-tech Epicyclic Gear Train Apparatus Model MT 131 consists of two standard epicyclic gear trains. Each gear train consists of a sun gear in the centre, three planet gears, a planet linkage and an internal or ring gear. The sun gear, ring gear and planet carrier all rotate about the same axis. The planet gears are mounted on shafts that turn in planet carrier and meshes with both the sun gear and the ring gear. Pulleys fitted with protractors are attached to the input and output shaft so that torque and velocity ratios may be determined.

Torques can be applied to the shaft by adding weights on cords wrapped on the pulleys. Bearings are used in the entire unit to minimize friction losses.

Model MT 131, can be operated in one a variety of modes. Locking pins are used to holding different parts of the apparatus in position. This gives the user different options on gear ratios that can be applied between the input and output shafts. By changing the combinations between the first and second epicyclic gear sets a wide range of ratios and different output directions can be produced. Efficiencies can be calculated for the units operation as well as theory tables given for the different gear combinations.

Sci-tech can supply the optional ‘Sci-Cal’ software & hardware interface which gives accurate real-time data capture, monitoring and display, calculation and charting of all important readings on a computer.

Technical Specifications

Specifications

  1. Motor: Variable speed DC Motor, 1 HP,
  2. Speed Control Unit: Thyristor controlled DC Drive for varying the speed of DC motor,
  3. Rope brake arrangement to measure output torque and holding torque
  4. Digital RPM Indicator with proximity switch.

Gears:

  1. 2 x Sun Gear: 48T, 72PCD, MOD1
  2. 6 x Planet Gear: 16T, 24PCD, MOD1.5
  3. 2 x Annulus Gear: 80T, 120PCD
  4. 2 x Protractor: 0..360°, 1° increments
  5. 2 x Pulley: Ø87.5mm
  6. 4 x Load hanger (100g)
  7. 6 x 0.1N, 10 x 0.2N, 3 x 1N weights
  8. 4 x 2N, 3 x 5N, 3 x 10N weights
  9. 1 x Tape measure
  10. Spare Cord (10m)

 

Experiment possibilities

  1. Calculate and experimentally observe the angular velocity ratios of gear trains
  2. Experimentally obtain the torque ratios of gear trains, gear ratios, efficiencies and velocity ratios can be calculated
  3. Calculate the efficiencies of gear trains and draw efficiency curve

Model Number

MT 131