Understanding Motor Controls
4th Edition
ISBN: 9781337798686
Author: Stephen L. Herman
Publisher: Delmar Cengage Learning
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Question
Chapter 21, Problem 6RQ
To determine
The contacts located between screw numbers 8 and 9 of terminal block 5B.
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The reversing motor,which is controlled by two power relays,can be rotated in both directions as shown in the figure beiow.When the motor is mechanically combined with a lead screw,the rotary motion is converted to a linear one,such as the one moving lef tor right on the worktable in the layout.The desired direction of rotation is selected via the two STAFIT buttons,respectively.The limit switches LS1 and LS2,located at the two extreme motion limits,ensure 1-rqtf we forget to stop the movement of the worktable,then it will stop automatically, and the mechanism of the layout will not be destroyed.Draw the circuit of automation.
0340
030-
0100
Ø160
280
60
--030
-775
Kinematic Diagram of a Slider-Crank Mechanism (Figure 1-01)
A. Draw the line diagram
B. Compute the degree of freedom
C. Label the parts
-160-
020
065
$10
5
65
5
The number of degrees of freedom of the linkage shown in the figure.
Chapter 21 Solutions
Understanding Motor Controls
Ch. 21 - Refer to Figure 21–1 to answer the following...Ch. 21 - Refer to Figure 211 to answer the following...Ch. 21 - Refer to Figure 211 to answer the following...Ch. 21 - Prob. 4RQCh. 21 - Prob. 5RQCh. 21 - Prob. 6RQCh. 21 - Prob. 7RQCh. 21 - Refer to Figure 21–1 to answer the following...Ch. 21 - Refer to Figure 21–1 to answer the following...Ch. 21 - Prob. 10RQ
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- Q1/ Number the links on two of the mechanisms shown in Figures (1 & 2 & 3 & 4 & 5) then, calculate the number of degrees of freedom. FIG. 1 FIG. 1 FIG. 2 FIG. 1 FIG. 3 Bo 16arrow_forward10.The mechanism in right figure is called (). A slider-crank mechanism B Oscillating guide-bar mechanism C crank- rocker mechanism D Rotating guide-bar mechanismarrow_forward3 Write the names of the following connection types and the elements used.arrow_forward
- By finding all the sudden rotation centers of the mechanism given in Figure 1 belowExplain by marking it SPECIFICALLY.arrow_forwardWrite and draw the following grashof's criterion and kind of grashof's four-bar mechanism such as; 1. Crank-rocker mechanism; 2. Drag link mechanism; 3. Double rocker mechanism; 4. Crossover-position or charge-point mechanism; 5 Triple rocker mechanism (non-grashof). Use technical Pen for the following: 0.2(light -for linkages and hand writing), 0.4(medium - for joints), 0.6(heavy - for fixed link or frames) use 2-4-4 template, all caps, italicized.arrow_forwardGet the degree of freedom of the following mechanism. Pin in Siot ofarrow_forward
- 6. Determine the centrodes of a slider-crank mechanism, whose crank length, OÂA, is equal to the connecting rod length, AB. as shown in Figure 6. A ОА Figure 6 B Note (to be read after completing the problem): The two circular centrodes are known as the Cardan circles; the smaller is half the diameter of larger and rolls inside it.arrow_forwardCould you please explain where and what is tight side and also how to find 5-9arrow_forwardAnswer the following questions. 1. What is a four bar linkage? 2. Draw a four bar linkage and identify the crank, connecting rod, rocker and frame and its meaning. 3. Draw a four bar linkage with a dimension of, crank = 2, connecting rod = 3, and rocker = 4 (all measurements are in inches)arrow_forward
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- Understanding Motor ControlsMechanical EngineeringISBN:9781337798686Author:Stephen L. HermanPublisher:Delmar Cengage Learning
Understanding Motor Controls
Mechanical Engineering
ISBN:9781337798686
Author:Stephen L. Herman
Publisher:Delmar Cengage Learning