Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 68 - Toucpad robotics C11
P. 68

    Castor Wheels
                      Description: A non-powered wheel mounted in a swivelling yoke.
                  u
                      It can roll in any direction and automatically align itself with the
                      direction of motion.
                      Characteristics: Often used in tri-wheel robots (one or two castor
                  u
                      wheels with two standard drive wheels) to provide stability and
                      free-rolling support.
                      Advantages: Provides stability to the robot and simplifies turning.
                  u
                      Disadvantages: It cannot be driven, and controlling it precisely can be difficult.
                  u
                                                   Mecanum Wheels

                                                        Description: These  wheels are  a  special  type  of  omnidirectional  wheel. The
                                                   u
                                                       wheel’s rim is fitted with a series of smaller rollers at a 45-degree angle to the
                                                       wheel’s axis.
                                                        Characteristics: By  controlling  the  speed  and  direction  of rotation  of each
                                                   u
                                                       wheel independently, a robot can move in any direction (forward, backward,
                                                       sideways, or diagonally) without needing to turn its body.
                      Advantages: Exceptional manoeuvrability, allowing the robot to operate in tight spaces.
                  u
                      Disadvantages: Mechanically complex, more expensive, less efficient on uneven surfaces due to the rollers.
                  u
                  Omni Wheels

                       Description: Similar  to  Mecanum  wheels,  these  are omnidirectional  wheels.
                  u
                      The wheel’s rim is fitted with rollers that are perpendicular to the wheel’s axis.
                       Characteristics: They allow a robot to move sideways by spinning some wheels
                  u
                      while others roll freely.
                       Advantages: Provides excellent manoeuvrability, can move sideways, and is
                  u
                      mechanically simpler than Mecanum wheels.
                      Disadvantages: Not  as  flexible  as  Mecanum  wheels for diagonal  movement
                  u
                      and can be prone to slippage.

                                                                                                      21 st
                        VIDEO SESSION                                                               Century   #Digital Literacy
                                                                                                     Skills
                        Scan the QR code or visit the following link to watch the video:
                        Types of Robotics Wheels

                        https://www.youtube.com/watch?v=KhRUgpJr1_4
                        After watching the video, answer the following questions:
                        1.  List the types of robotic wheels discussed in the video.

                        2.  Which wheel would you use for your robot, and why?

                  66
                  Touchpad Robotics - XI

| 63 64 65 66 67 68 69 70 71 72 73 |