The Geared System Apparatus ProDynami - 1346 investigates the dynamic behavior of 1, 2, and 3 stage spur gear units using 4 shafts. This Geared System Apparatus is driven by a cable drum and weight set via a removable crank, with a total transmission ratio of i = 64:1. It features inductive speed sensors, a transparent protective cover, and a hand brake for gentle braking. Optional flywheel masses and a chart recorder support angular acceleration and efficiency studies.

Geared System Apparatus ProDynami - 1346, Technical Specifications
| Specification | Detail |
|---|---|
| Unit Type | Laboratory unit for investigating the dynamic behavior of 1, 2, and 3 stage spur gear units |
| Transmission Ratio per Stage | i = 4:1 |
| Total Transmission Ratio | i = 64:1 |
| Drive Weight | 5......50kg |
| Fall Height | max. 0.65m |
| Winding | Manual, using crank |
| Shaft Mounting | All shafts mounted in ball bearings |
| Speed Measurement | Inductive speed-time diagrams |
| Protective Cover | Transparent plastic |
| Support | Sturdy steel tube support |
Technical Data
| Parameter | Value |
|---|---|
| Number of shafts | 4 |
| Transmission ratio per stage | i = 4:1 |
| Total transmission ratio | i = 64:1 |
| Gear width | 16mm, modulus 2 |
| Drive weight | 5.....30kg |
| Fall height | max. 0.65m |
Chart Recorder (Optional)
| Parameter | Value |
|---|---|
| Chart width | 100mm |
| Paper feed | 7200mm/h |
| Speed range | 0....2000rpm |
Key Features
Experiments
Construction and Design
The Geared System Apparatus ProDynami - 1346 consists of a 3-stage spur gear unit with 4 shafts, allowing 1 and 2 stage gear units to also be realized. Gear width is 16mm at modulus 2, giving a transmission ratio of i = 4:1 per stage and i = 64:1 total. Each shaft can be equipped with an additional flywheel mass to increase angular inertia. The gears are driven using a cable drum and a variable set of weights, lifted using a removable crank, with a fall height of up to 0.65m. A safety catch prevents unwinding, and a clamping roller free wheeling hub prevents undesired coiling of the cable. The weight is arrested by a receptacle with an impact attenuating insert. A hand brake facilitates gentle braking. A transparent protective cover prevents unintentional contact with the rotating parts. All four shafts are mounted in ball bearings and fitted with inductive sensors for measuring speed, supported by an optional chart recorder with a chart width of 100mm, paper feed of 7200mm/h, and speed range of 0 to 2000rpm. The apparatus is built on a sturdy steel tube support.
Scope of Delivery
Q: What is the Geared System Apparatus ProDynami - 1346 used for?
A: It is used to investigate the dynamic behavior of 1, 2, and 3 stage spur gear units, determining angular acceleration, mass moment of inertia, friction, and gear efficiency.
Q: What is the transmission ratio of this apparatus?
A: The transmission ratio is i = 4:1 per stage, giving a total transmission ratio of i = 64:1.
Q: How many shafts does the apparatus have?
A: The apparatus has 4 shafts, each capable of being fitted with an additional flywheel mass.
Q: How is the gear unit driven?
A: The gears are driven using a cable drum and a variable set of weights, lifted using a removable crank, with a maximum fall height of 0.65m.
Q: What speed measurement options are available?
A: All four shafts are fitted with inductive sensors for measuring speed, with an optional chart recorder available for recording speed-time diagrams.