If you are designing a hydraulic system, the correct choice and sizing of a gear pump is essential. In this guide, we’ll explore the key steps to sizing a hydraulic pump to fit the needs of your farm vehicle.
Step 1: Determine Required Flow (Q)
Start by identifying the desired actuator speed. For example, if your tractor requires a rate of 15 liters per minute, then the flow (Q) will be 15 l/min.
Step 2: Calculate Volumetric Flow Rate (V)
The volumetric flow rate is crucial and is calculated with the formula , where Q is in liters per minute and V in cm³ per minute.
Step 3: Determine Maximum Pressure (P)
Consider the maximum pressure needed for your system. If, for example, the maximum pressure is 250 bar, then P will be 250 bar.
Step 4: Calculate Required Power (N)
Determine the required power using the formula , with Q in liters per minute and P in bars.
Practical Application: Sizing for a 15 Ton Tractor
Let’s say the tractor weighs about 15 tons and you want a speed of 15 liters per minute. The volumetric flow rate will be cm³ per minute. With a maximum pressure of 250 bar, the power required will be kW.
Remember that these are general steps; it is important to also consider the efficiency of the pump and any pressure losses in the system for optimal sizing.
With this guide, you will be ready to optimize the traction of your tractor through the correct sizing of a gear pump in your hydraulic system.
