A hydraulic gear pump is a common hydraulic power component. Its structural features are mainly reflected in the following aspects:
Core Structural Components
The basic structure of a hydraulic gear pump consists of the following key components:
Gears: A pair of identical, meshing gears (one is the driving gear, driven by the prime mover; the other is the driven gear), which is the core component for energy conversion.
Pump Body: Forms a closed figure-eight shaped working chamber, accommodating the gears and constituting the outer wall of the suction and pressure chambers.
Front and End Covers: Cooperate with the pump body, sealing the working chamber and supporting the gear shaft.
Drive Shaft and Bearings: The drive shaft is connected to the gears via a key and is driven by a prime mover such as an electric motor; the bearings (usually needle roller bearings) support the gear shaft, ensuring smooth rotation.
Safety Valve: Some models are equipped with a safety valve on the pump body, which automatically opens when the outlet pressure exceeds a set value to prevent system overload.
