i need a design and fabrication of mechanically operated scissor lift ppt presentation. ....etc

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maximum lifting capacity : 3.5 ton
minimum height: 235 mm
maximum height : 575 mm ....etc

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A jack is a mechanical device used as a lifting device to lift heavy loads or to apply great forces. A mechanical jack employs a screw thread for lifting heavy equipment. A hydraulic jack uses hydraulic power. The most common form is a car jack, floor jack or garage jack, which lifts vehicles so that maintenance can be performed. Jacks are usually rated for a maximum lifting capacity (for example, 1.5 tons or 3 tons). Industrial jacks can be rated for many tons of load. ....etc

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Just I need information about my project that is mechanical bottle jack by bevel gear with image expression ....etc

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hydraulic jack
hydraulic jack
This device continuously auto lifting and lowering of a hydraulic jack that can run automatically and continuously lifting and lowering cycles without some external force. (a) the hydraulic circuit is simplified due to the location of the control valves to achieve reliable and convenient control.

Hydraulic jack uses a liquid which is incompressible, that is forced into the cylinder with the piston pump. Oil can be used as a lubricating and stable. the fuel comes from the tank through the suction check valve in the ....etc

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A worm gear is a gear arrangement in which a screw (which is a screw-shaped gear) engages with an endless gear (which is similar in appearance to a straight gear). The two elements are also called worm and worm wheel. The terminology is often confused with the imprecise use of the term worm gear to refer to the worm, the worm gear or the worm mechanism as a unit.
Like other gear arrangements, a worm mechanism can reduce the speed of rotation or transmit a higher torque. A worm is an example of a screw, one of six simple machines.

A gearbox ....etc

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To get full information or details of design of mechanical bottle jack bevel gear please have a look on the pages

http://seminarsprojects.net/Thread-full-design-and-calculation-of-hydraulic-bottle-jacks-pdf?pid=171525#pid171525

if you again feel trouble on design of mechanical bottle jack bevel gear please reply in that page and ask specific fields in design of mechanical bottle jack bevel gear ....etc

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Joyce Bevel Gear cats, available in static capacities of 7.5 to 100 tons, offer greater efficiency and greater speed than other mechanical jacks. As an added advantage, bevel gear gears also act as mitre boxes, making them an ideal choice for multi-jack systems. Up to three output shafts can be specified for mounting motors, limit switches, reading devices and other accessories. Tapered screws with single-headed screws (S-Series) provide the benefits of a self-locking screw and conical bevel gear screws with double-headed screws (D-Series) off ....etc

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To get full information or details of design of bottle jack mechanical bevel gear please have a look on the pages

http://seminarsprojects.net/Thread-design-of-bottle-jack-mechanical-bevel-gear--58181?pid=115514#pid115514

if you again feel trouble on design of bottle jack mechanical bevel gear please reply in that page and ask specific fields in design of bottle jack mechanical bevel gear ....etc

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design of mechanically operated bottle jack pdf

Jack is a mechanical device used as a hoist for lifting heavy loads or apply great forces. mechanical Jack use a screw thread for lifting heavy equipment. the most common form is Jack, floor Jack or garage Jack which lifts vehicles so that maintenance can be performed. Mechanical jacks are usually designed for maximum load capacity (for example, 1.5 tons or 3 tons). More powerful jacks use hydraulic power to provide more lift at great distances and can be evaluated for many tons of cargo.
screw j ....etc

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