McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated Part 4 doc
McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated Part 4 doc
... or forward. The bidirec- tional digital linear actuator shown in Figure 1-3 3 can provide linear res- Figure 1-3 3 This light-duty lin- ear actuator based on a perma- nent-magnet stepping motor ... positioning antenna reflectors, opening and closing security gates, handling materials, and raising and lowering scis- sors-type lift tables, machine hoods, and light-duty jib crane arm...
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated Part 2 docx
... reduce friction and gain higher efficiency than con- ventional leadscrews. Figure 1-1 2 Worm-drive systems can provide high speed and high torque. Figure 1-1 3 Ballscrew-driven single-axis slide mechanism ... to achieve smooth, high-speed motion without overstressing the ser- Figure 1-6 Ballscrew-driven single-axis slide mechanism with- out position feedback sensors. Figure 1-7 E...
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated Part 1 pot
... 136 Four-Wheeled Layouts 141 All-Terrain Vehicle with Self-Righting and Pose Control 144 Six-Wheeled Layouts 150 Eight-Wheeled Layouts 155 Chapter 5 Tracked Vehicle Suspensions and Drive Trains 161 Steering ... × 41 cm). Two other floor-standing systems are the FDM 8000, which builds models up to 18 × 18 × 24 in. (46 × 46 × 61 cm), and the FDM Quantum system, which builds models up...
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated Part 3 pptx
... bellows and helixes, as shown in Figure 1-1 6. The bellows con- figuration (a) is acceptable for light-duty applications where misalign- Figure 1-1 5 Flexible shaft cou- plings adjust for and accommo- date ... VR motor step angles are 15 and 30º per step. The 30º angle is obtained with a 4- tooth rotor and a 6-pole stator, and the 15º angle is achieved with an 8-tooth rotor an...
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated - 2003 Part 5 doc
... Polyurethane-coated steel-cable "chains"—both beaded and 4- pinned—can cope with conditions unsuitable for most conventional belts and chains. 86 Chapter 2 Indirect Power Transfer Devices Figure 2-1 4 Cluster ... belts, plastic -and- cable chain, and all types of steel chain connect the input to the output mechanically by means of teeth just 71 76 Chapter 2 Indirect Pow...
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated - 2003 Part 6 ppsx
... is both com- pact and simple. 112 Chapter 3 Direct Power Transfer Devices Figure 3-9 Figure 3-1 0 Figure 3-1 1 Figure 3-1 2 Figure 3-1 3 102 Chapter 2 Indirect Power Transfer Devices HIGH-SPEED GEARHEADS ... Transfer Devices 113 Shaft couplings that include internal and external gears, balls, pins, and nonmetallic parts to transmit torque are shown here. Figure 3-1 4...
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated - 2003 Part 7 pot
... make the cg shifting system com- pletely automatic and independent of all other systems on the robot, but no known example of this has been tested. Figures 4- 1 and 4- 2 show two basic techniques ... stop- ping the rotating part, usually the output shaft. Figures 3 -4 4 through 3-5 3 show several torque limiters, which are good examples of the wide vari- ety of methods available....
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated - 2003 Part 9 ppt
... These trucks (Figure 5-1 4) were called half-tracks. For a mobile robot, this is a less satisfactory layout since it Figure 5-1 3 Basic two-track layout Figure 5-1 4 The half-track ... drive -and- brake steering sys- tem. Controlling the speed of each track directly adds a second major drive source, but gives fine steering and speed control. A second improvement to drive -and- b...
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated - 2003 Part 10 ppt
... there. Figures 7-8 and 7-9 show four- and six-legged walkers with three rotary-actuated joints in each leg. An eight-leg layout would have no less than 24 actuators. The four- and six-legged versions ... designing a walk- ing robot. Figure 7-1 4 Six-legged tripod-frame walker with single-DOF legs Chapter 7 Walkers 209 Figure 7-8 Independent leg walker, four legs, twelve D...
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated - 2003 Part 11 ppsx
... in the case of sand, because it can’t be scaled. Sand is just sand no matter what size the vehi- cle is (except for tiny robots of course), and mud is still mud. Driving on sand or mud would ... vehicles’ suspension and locomotion systems are frequently quite simple. Figures 8-1 and 8-2 show two examples. Figure 8-1 Four-wheeled horizontal pipe crawler Chapter 8 Pipe Crawlers an...
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