Robotics Review 1
Linear Slide
A metal bar with angled sides that allow plastic sliders, or "trucks," to slide along its length without falling off.
Cam & Follower
A pear-shaped disk with an off-center pivot point, used to change rotating motion into reciprocating motion.
standoff
Used in mechanics to separate 2 parts from one another
Torque
a turning or twisting force
bolt
fastening pin or screw
Input Gear has 48 teeth and output 12 teeth what is the gear ratio?
1:4
Input Gear has 12 teeth and output 24 teeth what is the gear ratio?
2:1
Input Gear has 4 teeth and output 36 teeth what is the gear ratio?
9:1
gear
A circular toothed object used to transfer rotary motion and torque through interlocking teeth.
Simple Gear Train
A combination of two or more gears used to transmit motion between two rotating shafts or between a shaft and a slide.
Bearing Flat
A commonly used type of bearing in the VEX system. This bearing has three holes in a row. An axle is passed through the center hole which allows it to spin freely.
Universal Joint
A joint that allows connected shafts to spin freely while permitting a change in direction.
Worm and Wheel
A mechanical arrangement consisting of a toothed wheel driven by a short revolving cylinder bearing a screw thread.
Crank and Slider
A mechanism that consists of an arm attached to a rotating component which converts a rotational input motion to a different type of output motion.
Angle
A piece of hardware shaped like a letter "L" and used to brace objects.
Gusset
A plate or bracket for strengthening an angle in framework.
Rack and Pinion
A rotating gear that meshes with a bar that has gear teeth along its length. Changes rotating motion into linear motion.
KEPS Nut
A standard nut that includes a toothed "crown" designed to bite into a mounting surface and prevent the nut from slipping.
Lead Screw
A threaded shaft used to convert rotary movement to linear movement.
Sprocket
A toothed wheel whose teeth engage the links of a chain.
Oscillating motion
Back and forth movement in an arc.
Speed vs Torque
Directly relational to each other where an increase in one equals a decrease in the other.
Rubber Shaft Collar
Holds objects on shafts and/or the shaft itself in place.
drive shaft
The connecting component that carries torque and transmits rotation
Rail
This part is a versatile angle with one narrow side and one taller side
Robots original use
Three D's Dirty, Dangerous, and Dull
wrench
Tool used to hold mechanical nut in place
Chain Drive
a device that provides rotational energy to driven equipment by means of a series of sprocket wheels that interlink with a chain; designed for low speeds and high-torque conversions
Bevel Gear
a gear working another gear at an angle to it by means of bevel wheels.
screwdriver
a hand tool for driving screws
Belt Drive
a mechanism in which power is transmitted by a continuous flexible belt.
Gear Ratio
compare the driven gear to the drive gear
More torque equals
less speed
more speed equals
less torque
Reciprocating motion
linear back and forth motion
Simple Gear Train with Idler
makes the drive and the driven turn in the same direction, parallel axles
Rotary Motion
movement around in a circle
Meshed gears always turn in (opposite/same)
opposite
Rack Gearbox Bracket
provide support for several options of advanced motion
Drive Gear
the input gear
Driven Gear
the output gear
Shaft Collar
Locks on drive shafts, keeping wheels and gears from sliding along the shaft
linear motion
Movement in a straight line in one direction.
Push Rivet
Plastic piece used to quickly attach bearing flat to metal substructure
Spacers
Small plastic pieces used to space objects and drive shafts away from other pieces or to help line up objects
