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Motors - Hagglunds motors
Supplying power with precision
A Hägglunds motor is a fully enclosed unit. Its interior is always filled with oil, which makes it naturally lubricated and vibration-proof. The key motor components are a precision cam ring and a cylinder block with pistons.
Dynamic force
When the motor is mounted, its cylinder block is fixed on the driven shaft using the through hole at its centre. The cylinder block becomes one with the shaft, with its pistons radiating outward toward the cam ring.
During operation, oil is pumped into a connection block, which in turn distributes it to the cylinder block and pistons. This causes the pistons to act against the cam ring, producing a momentum that makes the shaft rotate smoothly.
Rapid response
The speed of the shaft’s rotation is determined by the flow of oil, and the direction of rotation is changed by reversing the direction of flow through the inlets and outlets.
Since the motor itself has a very low moment of inertia, all starts, stops and speed changes are directly controlled with the oil flow. More about this can be found under systems.
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