Joyce Jacks, Actuators & Systems
156Pages

With Joyce's interactive 3D modeling you can now configure, view online and download 3D models of Joyce/Dayton products directly into your designs. It's easy, too. Just go to the Joyce/Dayton web site(www.joycedayton.com), select a jack category to access the basic model, configure the model in real time and download the model for inclusion in your CAD drawing. The interactive 3D Models are created with SolidWorks > , MechanicalDesktop > ή and Autodesk Inventor > .For even greater productivity help, check out the insideback cover of this catalog for information on Joyce's free JAX > ٙ 3D...

Engineering Overview > Engineering OverviewEngineering InformationMachine Screw JacksMachine Screw ComDRIVE Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Drive Options & Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Jack Designs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Engineering Information > Torque & Horsepower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Column Loading . . . . . . . . . . . . . . . . . . . . . . ....

Electronic and Electromechanical Limit Switches See pages 120-121 Encoders200 PPR standard See page 119 String Encoders(Contact Joyce) Mechanical Counters(See page 117) Geared Potentiometer0-10V or 4-20Ma analog (See page 118) Joyce jacks and actuators are at theheart of linear motion systems in thousands of applications through- out industry. > Torque Limiting Coupling (Contact Joyce)Shafts and CouplingsSee pages 126-129Miter Gear BoxesSee pages 123-125Speed Reducers withoptional Torque Limiters available (Contact Joyce) > Proximity Switches(Contact Joyce) 4 > 1-800-523-5204 Visit our...

Joyce Translating Design Jacks A driven worm acts on an internal worm gear, which in turndrives a lifting screw to extend or retract. As the lifting screw translates through the body of the jack, inherent screw rotation is prevented by an attached load or mounting structure that is anchored to resist rotation. Joyce Keyed Design Jacks Some loads do not prevent lifting screw rotationחthese applications require a keyed jack. A key, fixed to the jack housing and inserted into a keyway milled into the lifting screw, forces the lifting screw to translate without rotating. Several dimensions of...

Total horsepower required for the left side of the system = 1.72 HP/jack x 2 jacks = 3.44 HP.3.44HP/.9 = 3.82 HP required into the miter box of section A. Since Section 1 is identical to Section 2, Section 2 required horse-power = 3.82 HP. > Example: find the horsepower required to raise a 7,000 pound loadat 22 inches/minute using a WJT65 screwjack.A. Determine the input speed: From page 18 - .044 in. lbs. torque required to raise each pound ofload = .044 x 7,000 = 308 in. lbs. Next, utilize this jack in a multiple jack systemחfor example the "H" system shown (see page 122). D. Section 1...

E N G I N E E R I N G 1-800-523-5204 Visit our website now for 2D and Interactive 3D models of all our Jacks and Actuators. www.joycedayton.com I N F O R M A T I O N >

E N G I N E E R I N G 1-800-523-5204 Visit our website now for 2D and Interactive 3D models of all our Jacks and Actuators. www.joycedayton.com I N F O R M A T I O N >

E N G I N E E R I N G 1-800-523-5204 Visit our website now for 2D and Interactive 3D models of all our Jacks and Actuators. www.joycedayton.com I N F O R M A T I O N >

N G I N E E R I N G 1-800-523-5204 Visit our website now for 2D and Interactive 3D models of all our Jacks and Actuators. www.joycedayton.com I N F O R M A T I O N Η >

E N G I N E E R I N G 1-800-523-5204 Visit our website now for 2D and Interactive 3D models of all our Jacks and Actuators. www.joycedayton.com I N F O R M A T I O N >

Q: What is a Keyed For Traveling Nut (KFTN) screw jack? > A: A keyed for traveling nut jack (sometimes referred to as arotating screw jack) features a lifting screw keyed to the worm gear as a single unit, forcing the lifting screw to rotate, but not translate. A flanged traveling nut, attached to the load, is driven by > Q: What is a keyed screw jack? keyed jack. A key, fixed to the jackhousing and inserted into a keyway milled into the lifting screw, forces the lifting screw to translate without rotating. Several dimensions of keyed jacks differ from normal jacksחcheck the keyed jack...

Q: Can I reduce the screw backlash? Q: How much backlash is in a Joyce machine screw jack? A: In machine screw jacks there are two types of backlash. Worm to worm gear backlash (typically 8-15 degrees worm rotation) and lifting screw to lifting nut backlash, sometimes called endplay (up to .020 inches on new standard jacks). Note: Due to the high ratios in worm gearing, worm to worm gear backlash is not a significant factor in most jack applica- tions since it normally corresponds to less than .002 backlash of the lifting screw. > Q: Can I buy a screw jack with a clevis on both ends? A:...

Integrated ActuatorsQ. What are the benefits of an integrated actuator? Q. Are integrated actuators self-locking? Q. What motor options are available? A. The IA51 and IA201 integrated actuators are inherently self-locking. All other models require a motor brake or other external locking device. A. Integrated actuators offer maximum design flexibility with a choice of gear ratios, cast NEMA 56C motor mounting, and a choice of precision ACME screw or high speed ball screw drives. A. Joyce/Dayton Integrated Actuators come standard with a NEMA 56C motor mounting so any motor with a 56C mounting...

Versatile Joyce Machine Screw Jacks lift andprecisely position all kinds of loads from 250 lbs. to 250 tons. Upright or inverted, these precision jacks operateat full capacity whether the load is in tension or compression. WJ series single lead jacks are self locking under full lifting capacity. DWJ double lead series jacks offer increased travel speed. Heat treated alloy steel worm shafts, aluminum/bronze worm gears and tapered roller or ball bearings provide rugged reliability.Double extended worm shafts are standard.Single extended worm shafts are available with right or left hand...