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Based on utility
Based on locomotion
Based on domain of operation



Based on utility
In military
In industries
In space explorations
In transportation
In medical applications

In military

Military robots are autonomous or remote-controlled devices designed for military applications.


In manufacturing industry

Cylindrical robots
Cartesian/Gantry robots
Spherical/Polar robots
Scara robots
Articulated robots
Parallel robots


Based on locomotion
Differential wheeled robots
Snakebot
Walker

Differential wheeled robots
A differential wheeled robot is a mobile robot whose movement is based on two separately driven wheels placed on either side of the robot body. It can thus change its direction by varying the relative rate of rotation of its wheels and hence does not require an additional steering motion.

Based on domain of operation
Stationary robots
Ground robots
Under water robots
Aerial robots
Microgravity robots

Stationary robots
Ground robots
Under water robots
Aerial robots
This has far reaching and global impacts to both military and civilian aviation where both manned and unmanned aircraft will share a common air space.
Others
Nano robots
Swarm robots
Humanoid robots
Entertainment robots

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Different Types of Robots
Robot Arms (Fixed Robots)
Mobile Robots
Humanoid Robots
Legged Robots
Wheel Robots
3 wheels
2 Driver wheels, 1 Caster
1 Driver wheel, 2 Casters
4 wheels
Casters make diverse problems in the control of the robot
Wheel Robot Main Components
Main Components
Mechanics
Wheels
Driver Motor (s)
Power Transmission System
Electronics
Controller Board
Needing feedback from environment
Sensors
We are now discussing some of the above topics
Different Types of Motors
DC Motors
You can simply control it
AC Motors
It’s difficult to be controlled but it can be used in high power applications
Servo Motors
You have complete control on the shaft angle
Different Types of Feed Back
Sensors
IR Sensors
Pressure Sensors
Light Sensors
Temperature Sensors
Encoder
What is Encoder
Why do we use Power Transmission Systems?
To reduce Angular Velocity
To increase Torque
P = (T . w) = cte.
Different Transmission Systems
Gear
Hard manufacturing
and adjustment
Pulley
Gear
Gears are used to change the speed and force of the motor. You can use gears to:
Speed up or slow down your robot.
Make your robot stronger or weaker.
There are many different types of gears
Spur Gear
Bevel Gear
Worm Gear
Rack & Pinion
Gear
Spur gears are wheels with teeth
Gear
Bevel gears mesh at right angles, so they change the direction of rotation.
Gear
Worm gears look like screws. They have many special properties.
Gear
Rack & pinion gears turn rotational motion into straight-line motion.
Idler Gear
An idler gear is a gear that is inserted between two other gears. Idler gears do not affect the gear ratio between the input and output gears. The gear ratio would be computed just the same if there were no idler gear.
Idler Gear
Recall that when using spur gears, the output axle rotates in the opposite direction as the input axle.
You can also use idler gears to change the spacing between the input and output axles
Remember, idler gears do not change the gear ratio
Gear
The gear ratio of this gear box is 75 to 1