Mechanisms and Mechanical Devices Sourcebook - Chapter 12
Mechanisms and Mechanical Devices Sourcebook - Chapter 12
... mechanismare in coupling devices for load-carrying carts or trucks,hooks or pick-up attachments for cranes, and quick-releasemechanisms for remotely controlled manipulators.Sclater Chapter 12 5/3/01 1:24 ... Chapter 12 5/3/01 1:25 PM Page 414 415Sclater Chapter 12 5/3/01 1:25 PM Page 415 416DETENTS FOR STOPPING MECHANICAL MOVEMENTSSome of the more robust and practical dev...
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 127 128 NINE 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 i...
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 ... cor-ner. The result is less fatigue and longer life.Sclater Chapter 6 5/3/01 12: 24 PM Page 178 OVERRIDING SPRING MECHANISMS FORLOW-TORQUE DRIVESFig. 1 Unidirectional override. The...
Ngày tải lên: 22/10/2012, 14:26
Mechanisms and Mechanical Devices Sourcebook - Chapter 7
... 5/3/01 12: 33 PM Page 212 213SIXTEEN LATCH, TOGGLE, AND TRIGGER DEVICESDiagrams of basic latching and quick-release mechanisms. Fig. 1 Cam-guided latch (A) hasone cocked, and two relaxed posi-tions, ... 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 l...
Ngày tải lên: 22/10/2012, 14:26
Mechanisms and Mechanical Devices Sourcebook - Chapter 8
... CHAPTER 8GEARED SYSTEMS ANDVARIABLE-SPEEDMECHANISMSSclater Chapter 8 5/3/01 12: 42 PM Page 241 Gears are versatile mechanical components capable of per-forming many different ... 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 247 248Ring -and- pulley drive (Fig. 9). Athick ... PM...
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
... 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 loading. ... signal devices. The load plunger and the swaged-on cable termina-tion have ball -and- socket seat sections to permitmaximum free cable movement, reducing the possi-bility of fatig...
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 ... to a minimum. Thisheavy-duty gear pump can be used at pressures up to 1,000 psi.These pumps were made with either single- or double-endshafts and can be foot- or flange-mounted. The drive sh...
Ngày tải lên: 22/10/2012, 14:26