Hydraulic Gate Opener

Hydraulic Gate Opener

Principal Teaching Objectives

Hydraulic Gate Opener

• The equipment covers the following areas of study :
• Energetic
• Fluid mechanics
• Functional analysis of an industrial product
• Technical communication tools
• Mechanical links
• Relationship between product – manufacturing process – material
• Measurement of physical values and calculation of performance
• These calculations are entered into a spreadsheet file (model supplied) to allow interpretation of the test data and results.

Using the measurements and experimental data, calculations will among other give :

• The theoretical capacity of the pump (using CAD software)
• The determination of the following parameters, based on the measurements obtained with the equipment:
• Translation speed of jack rod (time, distance)
• Theoretical flow rate of the pump (capacity, rotation speed)
• Oil flow rate (piston diameter, rod diameter, rod speed)
• Released mechanical power (mass lifted, rod speed)
• Resultant pressure forces on the piston (piston diameter, rod diameter, pressure)
• Jack efficiency and global efficiency ( if functioning in load)
• Flow measurement comparison: pump – jack and jack – pump.
• Analysis of the functions provided by the different valves and safety pressure valve used in the hydraulic circuit
• Highlighting of the change in efficiency and friction as a function of the applied load and temperature increase
• Analysis of the design methods associated to prevent leaks and to facilitate assembly.

Technical Specifications

• The electro-hydraulic gate opener is mounted on a plastic PVC base together with the related instrumentation.

It includes :

• An electrical motor
• An oil gear pump
• A lift device for the mass ( the masses can be hanged in a driven position or a braking position)
• A complete instrumentation allowing the measurement of:
• Motor speed using an induction sensor and signal conditioner / indicator display
• Power consumed using an optional Clamp-type ammeter
• Oil pressure in the two supply circuits of the cylinder using 2 pressure gauges
• Time taken for the shaft to reach a predetermined position using an optional stopwatch

Certain essential specifications for the equipment are provided, including :

• Pump dimensions, measured on a tri-axis measurement machine and profile projector, supplied on CAD files
• Performance specifications of the hydraulic jack
• Intensity of the lifted mass (system can also be used empty)

Equipment Package

• Standard equipment:
• Table top test bench (the table is not supplied)
• The masses are not included as standard
• Using Your Equipment
• Essential requirements :
• Voltage : 220V, 50 Hz, other voltages available on demand
• Clamp-type ammeter,
• Stopwatch,
• Set of masses : 4 x 1 5 kg
• 100 MHz PC with Windows*, Excel*, AutoCAD** and Solid Works*
• Windows, Excel are a registered trademark of Microsoft.
• AutoCAD is a registered trademark of Autodesk Inc.
• Solid Works is a registered trademark of Solid Works Corporation.

Dimensions and weight

• 1200 x 300 x 200 mm
• Weight : 20 kg