Knowledge Base > Technology

Motors

The drive system of a robotics design is one of the key components enabling the product to operate effectively and efficiently, particularly the motors. There are various DC motors incorporated into the design of Jamko's robotic drive systems. 

The primary concept behind a DC motor is creating mechanical energy from electrical energy. DC motors are comprised of the following components:

• Armature/Rotor
• Commutator
• Stator (magnetic poles)
• Bearings
• Brush or Brushless

The industry Jamko currently services is a very demanding industry in regards to precision and durability. The products need to operate predictably and continuously. If a product is used during a foreign material exclusion (FME) and the motor becomes inoperable, the product then becomes another foreign material in the FME area and needs to be retrieved. Predictability is another prerequisite in the process of choosing the correct components in a drive system. 

There are primarily four types of the DC brush motors. The more common is the permanent magnet DC motor, the shunt-wound DC motor, the series-wound DC motor and the compound-wound DC motor.

• Permanent magnet DC motor - This particular DC motor uses fixed, stationary magnets as the stator to create the magnetic repel/attraction with the armature.
• Shunt-wound DC motor - A shunt field coil is placed parallel to the armature/rotor field coil.
• Series-wound DC motor - A field coil is placed in series with the armature/rotor field coil.
• Compound-wound DC motor - This particular DC motor uses a combination of the shunt-wound field coil and a series-wound field coil.