DC Drive Systems

DC Drive Systems are vital for anything with a DC Electric Motor, be it a golf trolley, electric wheelchair or other form of drive system. But how do they work? What are they made of? And how do you get the most value from it?

First a small primer on DC Motors. DC motors are used in a variety of applications where a petrol or an AC engine would be too wasteful. They are primarily used in mobility systems such as electric wheelchairs or golf trollies, but can be used as pinsetters in bowling alleys, winching equipment & other static devices. They use a small direct current (which is actually an alternate current converted to DC) to produce a lot of power and torque. This is largely due to the drive system within the system.

To begin with, there is the electric motor. This – when connected to a power source (usually a battery or to the mains) – drives the engine. For choosing an engine for your drive system, don’t skimp on quality. The engine is absolutely vital, and although cost and space constraints must be taken into account, skimping on reliability can drastically affect your drive system. If you’re after a buyers suggestion, generally speaking, it should be the least powerful engine needed to sufficiently do your task.

Connected to the dc electric motor, but of equal importance, is the gearbox. This is vital for the efficient running of the engine. It uses momentum to power the drive shaft, rather than the motor’s power. This reduces wear on the motor, as it runs at lower speeds. It also helps improve the speed at which the whole system can run at, so whilst it’s not an essential part of the drive system, it’s practically is for long term operation of the drive system.

Finally, there is the drive shaft, and the only bit of the system to be custom made exclusively for you. The drive shaft is a shaft or rod, which is connected to the gearbox at one end, but the other end is connected to an axle or to whatever you want to power. Again, this needs to be pretty durable, as replacing a custom drive shaft can be expensive.

Custom Drive Systems are created with two things in mind, durability (the longer lasting the better) and efficiency (the less power used to run the system at high speeds, the better). Often the two go hand in hand. These two are uniform of all projects, regardless of use. Furthermore, you may have further requirements for your DC Drive system, speaking to an experienced electrical engineer will give you advice on what you need.

To find out more about DC Drive Systems, why not check out Fracmo, a Europe wide manufacturer of DC Motors, gearboxes & custom build applications.

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