download ppt on automatic screw jack

Abstract

Screw type mechanical jacks were very common for jeeps and trucks of World War II vintage. For example, the World War II jeeps were issued the Jack, Automobile, Screw type, Capacity 1 and 1/2 ton, Ordnance part number 41-J-66. This jacks, and similar jacks for trucks, were activated by using the lug wrench as a handle for the jack's ratchet action to of the jack. The 41-J-66 jack was carried in the jeep's tool compartment. Screw type jack's continued in use for small capacity requirements due to ....etc

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Abstract:

Scissor jacks are simple mechanisms used to drive large loads for short distances. The power screw design of common scissor jack reduces the amount of force required by the user to drive the mechanism. Most scissor jacks are similar in design, consisting of four main members driven by a power screw. In this report, a unique design of a scissor jack is proposed which is very easy to manufacture. Each member, including the power screw sleeves, is made of the common c-shape. This eliminates the need for machined power s ....etc

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to get information about the topic motorised object lifting jack full report ppt and related topic refer the page link bellow

http://patentstorm.us/patents/5992826/description.html ....etc

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screw jack using bevel gear report pdf download

Considering factors such as load, speed, torque and space, there s no debate that bevel gear jack systems offer unique benefits to worm gear jack systems. The system s long-duty cycle capabilities and multiple configurations make it a diverse product that suits a variety of applications.

Although worm gear jacks are sufficient for large loads that are infrequently moved, bevel gear jacks offer more flexibility and programmable options for a wider range of applications.

Bevel gear jack system ....etc

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i want requirment and details about fabrication of motorized screw jack for vehicles.. ....etc

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advantages and disadvates of screw jack

A jackscrew is a type of jack that is operated by turning a leadscrew. In the form of a screw jack it is commonly used to lift moderately heavy weights, such as vehicles. More commonly it is used as an adjustable support for heavy loads, such as the foundations of houses, or large vehicles. These can support a heavy load, but not lift it.A screw jack is a simple machine. It is used to lift cars or heavy automobiles. It consists of a long screw rod which passes through a threaded block B and a handle . Th ....etc

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which can be run on battery of the vehicle. By using stepper motor it can be possible to rise and lower the load.

read this article to get better idea of this project
http://patentstorm.us/patents/5992826/description.html

i hope you enjoyed it
if yes,i welcomes you to participate in this forum discussions for helping other students issues ....etc

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It is a urgent requirement of design of electric scissor jack in pro engineering software. I hope it is useful for us. thank you.
please give me a some design for electric jack in pro engineering ....etc

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To get full information or details of how to make a motorised object lifting jack please have a look on the pages

http://seminarsprojects.net/Thread-motorised-object-lifting-jack

if you again feel trouble on how to make a motorised object lifting jack please reply in that page and ask specific fields in how to make a motorised object lifting jack ....etc

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to get information about the topic motorised screw jack related topic refer the page link bellow

http://seminarsprojects.net/Thread-motorized-screw-jack?pid=57342&mode=threaded ....etc

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