Power Take-Off Chains Claw Open: torsion springs Claw Close: pancake cylinder pulls cable Roller...
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Transcript of Power Take-Off Chains Claw Open: torsion springs Claw Close: pancake cylinder pulls cable Roller...
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Caterpillar – getting to 30SAB -SAB - - AGE - AGE
CaterpillarClaw Legs
Power Take-OffChains
Claw Open: torsion springsClaw Close: pancake cylinder pulls cable
Roller Bearings(3 iterations)
Claw Geometry(2 iterations)
Claw Pull(2 iterations)
Leg Base(3 iterations)
Leg 0 Cylinder(3 iterations)
Leg 1 Cylinder(4 iterations)
Leg 2 Spring(∞ iterations)
Anti-Backdrive Arm(2 iterations)
Leg 0-1 Down/Up: cylindersLeg 2 Down: gravityLeg 2 Up: pyramid
Power Take-OffCIM+Toughbox+15T24T+Live Axle+9T24T
Caterpillar Control
Mounted in front of each Leg…Senses the horizontal bar…Triggers Claw Open, Leg Up
Prox SensorsProx SensorsProx Sensors
Mounted in front of each Leg…Senses if Leg is down…Triggers next state
Limit SwitchesLimit SwitchesLimit Switches
The Climb ProcessManual StartDrive Up Close Claw 0 Drive Both (always) Close Claw 1 + Skids Out
Automatic SequenceTrip Prox 0 & Switch 2 Close Claw 2 Open Claw 0 Raise Leg 0Trip Prox 1 Lower Leg 0 Close Claw 0 Trip Switch 0 Open Claw 1 Raise Leg 1Trip Prox 2 Lower Leg 1 Close Claw 2 Trip Switch 1 Open Claw 2
Both drivers have positive control…Either stops, climb freezes…Base driver locks swerve modules
Repeat!
Induction Proximity Sensors (~7 iterations)
Limit Switches (~5 iterations)
Safety!
SkidsSkids
Front V
CaterpillarAlignment
Currently laser-cut polypropylene sheet…Centers on pipe as swerve drives up
Manually-milled acetal tubes…Pneumatic cylinders inside…Drive out rods to engage horizontals
Leg VsLeg Vs
Laser-cut polypropylene…Centers Legs 0 & 1 in-climb
Composite core polyurethane…Molded “bowties” to center
WheelsWheelsWheels
Skids (2 iterations)
Wheels (~9 iterations)
Leg Vs (NEW - 2 iterations)
Front V (5 iterations)