Other Teams with Backdriveable Actuators:
| Team Name | Characteristics | Image |
|---|
KNR | - Rest position is relatively horizontal
| |
IMPULS: | - Rest position is completely horizontal
- Low center of gravity
- Can remain in that position for a max tilt of 60 degrees
| |
| MONASH | - Completely horizontal L2 rest position
- Arm further back, center of mass further back in rest position
- Passive holder/caging mechanisms for Linkage 2
| |
Electromagnetic Disk Brakes
- Holds load when power is disconnected
- Brakes used on the motors/drives
- Two types
- Spring applied brakes
- Permanent Magnet brakes
Spring Applied Brakes
- When there is no power:
Spring pushes against the pressure plate - In turn, the friction disk is squeezed between the pressure plate and cover plate
- The clamping force is transferred to the hub
- Preventing the shaft to rotate
- When there is power:
- The field coil turns into an electromagnet and cancels out the spring force
- The friction disk is not clamped anymore (i.e. there is gap between friction disk and pressure plate/cover plate)
- The motor is allowed to rotate
Magnet Brakes
- Magnets is used to attract a single face armature
- When there is no power:
- Magnets create flux, which attracts the armature to the brake/friction surface.
- Prevents the shaft to rotate
- When there is power
- Power is applied to the coil which sets up a magnetic field that negates the flux of the magnets.
- The motor is allowed to rotate
References:
https://www.electric-brake.com/
