Mechanisms and Mechanical Devices Sourcebook - Chapter 7
Mechanisms and Mechanical Devices Sourcebook - Chapter 7
... composedof circular arc 1-2 with center at 02, arc 3-4 with center at 03, arc 4-5 with center at01, arc 5-6 with center at 04, arc 7- 1 withcenter at 01, and the straight lines 2-3 and6 -7 . The method calls ... links II and III come into toggle.Sclater Chapter 7 5/3/01 12:33 PM Page 212 213SIXTEEN LATCH, TOGGLE, AND TRIGGER DEVICESDiagrams of basic latching and quic...
Ngày tải lên: 22/10/2012, 14:26
Mechanisms and Mechanical Devices Sourcebook - Chapter 3
... CHAPTER 3PARTS-HANDLINGMECHANISMSSclater Chapter 3 5/3/01 10:19 AM Page 51 5 2MECHANISMS THAT SORT, FEED,OR WEIGHORIENTING DEVICESHere’s a common problem; Parts arrive in either open-end ... movement, andthe top disk provides the up -and- down force necessary for thecutting action.This four-bar linkagewith an extended couplercan cut a web on the runat high speeds. The four-bar linkage .....
Ngày tải lên: 22/10/2012, 14:26
Mechanisms and Mechanical Devices Sourcebook - Chapter 4
... smoothness and flexibil-ity in converting constant rotary motioninto a start -and- stop type of indexing.It works equally well for high-speedoperations, as fast as 2 seconds per cycle,including index and ... favorablehigh-speed characteristics for stop -and- go mechanisms isr3= R3The profile defined by this equationhas, among other properties, the charac-teristic that, at transition fro...
Ngày tải lên: 22/10/2012, 14:26
Mechanisms and Mechanical Devices Sourcebook - Chapter 5
... CHAPTER 5SPECIAL-PURPOSEMECHANISMSSclater Chapter 5 5/3/01 11:45 AM Page 1 27 128NINE DIFFERENT BALL SLIDES FOR LINEAR MOTIONFig. 1 V-grooves and flat surface make a ... tilting and uncertaintyin the distance between the plates). Otherprior mechanisms relied on spring load-ing, differential multiple-point drives andother devices to reduce backlash. In pro-viding ... inven-tors in...
Ngày tải lên: 22/10/2012, 14:26
Mechanisms and Mechanical Devices Sourcebook - Chapter 6
... A standard rotat-ing-air fitting is required.Reciprocating linear force link: It recipro-cates with one-, two-, or three-convolutionair springs in a back-to-back arrangement.Two- and three-convolution ... CHAPTER 6SPRING, BELLOW,FLEXURE, SCREW, ANDBALL DEVICESSclater Chapter 6 5/3/01 12:24 PM Page 173 FLAT SPRINGS IN MECHANISMS1 74 Constant force is approached because of the length o...
Ngày tải lên: 22/10/2012, 14:26
Mechanisms and Mechanical Devices Sourcebook - Chapter 8
... which control radial position andtherefore control the orbit. Ring and sundisks are spring-loaded.DISK DRIVESSclater Chapter 8 5/3/01 12:42 PM Page 2 47 248Ring -and- pulley drive (Fig. 9). Athick ... losses in the gears and bearings andfrom windage and churning of lubricant.gear power: A gear’s load and speed capacity, determined bygear dimensions and type. Helical and helical...
Ngày tải lên: 22/10/2012, 14:26
Mechanisms and Mechanical Devices Sourcebook - Chapter 9
... Rzappa-type jointto get the desired effect.Ball -and- socket. Basically, the True-Speed joint is a system of ball -and- socket connections with large contactareas (low unit pressure) to transmit tor-sional ... ofMIL-E-5400, class 3 and MILK-3926specifications.Applications were seen in counter andreset switches and controls for machinesand machine tools, radar systems, andprecision potenti...
Ngày tải lên: 22/10/2012, 14:26
Mechanisms and Mechanical Devices Sourcebook - Chapter 10
... CHAPTER 10TORQUE-LIMITING,TENSIONING, ANDGOVERNING DEVICESSclater Chapter 10 5/3/01 1: 07 PM Page 339 340CALIPER BRAKESHELP MAINTAINPROPER TENSIONIN PRESS FEEDA simple cam -and- linkage ... warning light and second tolight a red bulb and also sound an alarmbell.Over-the-side or over-the-rear loadingrequires a different setting of theBourdon pressure-gage unit than doesover-the-front...
Ngày tải lên: 22/10/2012, 14:26
Mechanisms and Mechanical Devices Sourcebook - Chapter 11
... steel, monel, andbronze for handling acids, oils, and sol-vents. The impeller is made of pressure-vulcanized laminated layers of Hycar, 85 to90 percent hard. Sand, grit, scale andfibrous materials ... 1,300rpm by a steam turbine.Sclater Chapter 11 5/3/01 1:15 PM Page 373 374 ROTARY-PUMP MECHANISMSFig. 1 (A) A Ramelli pump with spring-loaded vanes to ensure con-tact with the wall; vane e...
Ngày tải lên: 22/10/2012, 14:26
Mechanisms and Mechanical Devices Sourcebook - Chapter 13
... discussed here.447Sclater Chapter 13 5/3/01 1:32 PM Page 4 47 448DESIGN CURVES AND EQUATIONS FOR GEAR-SLIDER MECHANISMSWhat is a gear-slider mechanism? It islittle more than a crank -and- slider withtwo ... forthe transmission optimization of crank -and- rocker linkages, but also for othercrank -and- rocker design. For example, ifonly the rocker swing angle and the cor-responding crank...
Ngày tải lên: 22/10/2012, 14:26