McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated Part 3 pptx
McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated Part 3 pptx
... VR motor step angles are 15 and 30 º per step. The 30 º angle is obtained with a 4-tooth rotor and a 6-pole stator, and the 15º angle is achieved with an 8-tooth rotor and a 12-pole stator. These motors ... 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- pl...
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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...
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated - 2003 Part 5 doc
... mech- anism. Power transfer mechanisms are normally divided into five gen- eral categories: 1. belts (flat, round, V-belts, timing) 2. chain (roller, ladder, timing) 3. plastic -and- cable chain (bead, ... 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 Power Transfer Devices Tab...
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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 ... assem- bles to complex spring and synthetic rubber assembles. Those including chain belts, splines, bands, and rollers are shown here. Figure 3- 1 Figure 3- 2...
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated - 2003 Part 7 pot
... couplings are ideal for toys, instruments, and other light-duty mechanisms. For heavy duty, such as the front-wheel drives of Figure 3- 2 3 A pinned-sleeve shaft-coupling is fastened to one saft that ... 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 availab...
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McGraw-Hill - Robot Mechanisms and Mechanical Devices Illustrated - 2003 Part 9 ppt
... 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- brake ... 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-tra...
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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 ... Traversing/rotating frame eight-leg frame walker with single-DOF legs Figure 7-1 3 Eight-leg frame walker with two-DOF legs Chapter 6 Steering History 191 Figure 6-2 Bicycle s...
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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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