Design, development and analysis of electrically operated. This scissor jack is a high quality import distributed by u. A screw jack is a mechanical device that can increase the magnitude of an effort force. Design of the toggle jack free download as word doc. The end fits into a ring hole mounted on the end of the screw, which is the object of force on the scissor jack. Scissor jack 1 12 ton capacity american made order on line or call 800 535 2257. Mar 11, 2015 the completed solidworks design of the scissor jack and its members shown in figure 2. Mohammed department of mechanical engineering university of mines and technology, tarkwa, ghana. Pdf a scissor jack is a mechanical device used to easily lift a vehicle off the ground to gain access to sections underneath the vehicles or to change. A wide variety of double scissor jack design options are available to you, such as. R 1 f effort force at the end of the arm or handle lb, n q weight or load lb, n p pitch distance or lead of thread in one turn in, m. This project describes the design as well as analysis of a mechanical scissor lift which works on the principle of screw jack. Light in weight and small in size, it can be easily stored in the trunk of your vehicle. Scissor jack definition is a powerful lifting jack operated by a screw in horizontal position that lengthens or shortens the horizontal diagonal of a parallelogram consisting of the linkages of the jack.
Design and analysis of scissor jack full report downloadmechanical project introduction mechanical jack a jack is mechanical device used to lift heavy loads or apply great forces. Fits in the larger 26x14x16 envelope, but could possibly wedge into the smaller package diagonally. The rja1538 pole jack is designed for pole pulling applications. The central screw is also how the jack is operated, with an endmounted circular ring designed to accept a large allen keyshaped metal arm. The product f eature of scissor mechanical car jack 1.
His notorious screwjack is as salacious, unsettling, and brutally lyrical as it has been rumored to be since the private printing in 1991 of three. It also has a 3000 lb capacity and weighs just 9 lbs, making it easy to position, and the handle design makes it easy to lift and transport. The design will be developed keeping in mind that the lift can be operated by mechanical means so that the overall cost of the scissor lift is reduced. A scissor jack is a mechanical device used to lift a heavy vehicle from the ground for changing the wheel and for maintenance purpose. The most important fact of a jack is that, it gives the user a mechanical advantage by changing the rotational motion into linear motion and allowing user to lift a heavy car to the require height. Acclaimed journalist ted conover sets a new standard for bold, indepth reporting in this firsthand account of life inside the penal system. Design analysis of scissor jack free download as powerpoint presentation. Conventionally a scissor lift or jack is used for lifting a. Modification of the existing design of a car jack a.
The most common form is a car jack, floor jack or garage jack which lifts vehicles so that maintenance can be performed. Machine screw comdrive motorized jack joycedayton machine screw comdrives combine a machine screw jack, motor and gear reducer into a single compact unit. Most scissor jacks are similar in design, consists of four lifting arms, a base plate, a carrier plate, two connection members, eight connection pins, a power screw and a crank. Design and analysis of scissor jack full report download. Pdf design and analysis of scissor jack firaol asefa. This paper discussed the design and analysis of modified car jack. The user sits on the seat shown at bottom of mechanism and pulls themself up using the handles at the top. It appears you dont have adobe reader or pdf support in this web browser.
Maybe you want to get an rv someday, and thats great, but get the jack for what you have now, and worry about the rest later. Stationary lifts with a low 6 to 6 12 profile, pld dock scissor lifts feature either a. A scissor jack is operated simply by turning a small crank that is inserted into one end of the scissor jack. Dims specs of which i must design to are as follows. Christensen was inspired to design and develop high. The picture of design of scissor mechanical car jack 2. In this design, the cigarette lighter receptacle point is connected in car, which drives the power from the car battery 12v, this will run the dc. As you look at the jacks on our list, youll read references to. Im trying to design a device for lifting my own weight, which ive bascially modelled using 3d cad, shown below. Torin jacks torin 1 5 ton jack jacks scissor capacity compact 3 000 lb load handle included.
Modification of the existing design of a car jack citeseerx. Sep 08, 2015 design and fabrication of a power scissor jack 1. The completed solidworks design of the scissor jack and its members shown in figure 2. The deformation of the screw jack in y direction 2. Jack that this piece of equipment will meet your expectations in quality and performance. Sc pumps are suitable for use on scissor jack lifts, aircraft jacks, clamping devices, punches and pin presses, valve actuation, roller tensioning, torque wrenches, press system overload, pressure testing, crimping, trash discharge size. A jack is mechanical device used to lift heavy loads or apply great forces. Also such design can make the lift more compact and. Also such design can make the lift more compact and much suitable for medium scale work. If you are buying a used car, be sure to check the trunk and make sure this jack is also included, together with the owners manual. Portable,easy to use by hand,this scissor jack is totally made for car users in case of car problems. Car jack cad design the objective of this project was to design and assemble a scissortype car jack, and to create a full set of 2d drawings. The main parts of scissor jack are top plate, bottom plate. The idea is that i can adjust the fulcrum point of the bars and therefore change the.
You place the jack right behind the wheel, and it lifts up that side of the car. The purpose of this project is to develop a car jack which is easy to be operated, safe and able lift and lowering the car without involving much physical effort. R 1 f effort force at the end of the arm or handle lb, n q weight or load lb, n p pitch. The most common form is a car jack, floor jack or garage jack, which. The power screw design of a common scissor jack reduces the amount of force required by the user to drive the mechanism. Aerial scissor lifts are generally used for temporary, flexible access purposes such as maintenance and construction work or by firefighters for emergency access, etc which. The manual jack often fits into a trunk compartment, and its part of what car buyers get, along with a spare tire, to help them fix any roadside flat tire situations. Development of motorized car jack longdom publishing sl. The effort force for a screw jack when neglecting friction can be expressed as. Hello everyone i am working on a design at the moment using inventor 2012. For reasons of synchronisation, it is usual to employ a single geared motor, often with a double output shaft such as is possible with a helical bevel design. Figure 1 shows the design of automatic car jacker where.
Our easytouse jax r online software enables you to specify the right jacks and components for your ideal lifting and linear motion system. The jack is designed to support 25% of the weight of small passenger cars weighing up to 1200 kg. The problems associated with the conventional jacks are the. Apr 02, 2020 the most common and familiar type of scissor jack to most consumers, though, is a manual jack. It is also known as a screw jack, and is commonly used as car jacks. Design and fabrication of power scissor jack a project report submitted in partial fulfillment of the requirements for the award of the degree of bachelor of technology mechanical engineering submitted to kl university by s. Looking for a scissor lift for an atv or bike instead. Nikam4 1,2,3 department of mechanical engineering, savitribai phule pune university, amrutvahini college of. Scissor jack definition of scissor jack by merriamwebster. Change a tire quickly and securely with the help of a scissor lift. Design and fabrication of mechanical lift for transportation. Design and standardization of scissor jack to avoid field. Design of scissor jack is done with proe and model assembly is shown in figures 1 to 3.
Scissor or toggle jack a toggle or scissor jack is a device which lifts heavy equipment. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. The design is fundamentally a modification of the conventional scissor jack. Rogtz electric car floor jack set 3 ton allinone automatic 12v scissor lift jack with impact wrench and tire inflator pump for tire. While the basic design of the scissor jack is consistent from jack to jack, the loadbearing capability and the specific intention of each jack is unique. A scissor jack is a device constructed with a crosshatch mechanism, much like a scissor, to lift up a vehicle for repair. A mechanical jack is a device which lifts heavy equipment. A jackscrew is a type of jack which is operated by turning a lead screw. Although i am making up the majority of them as i go along. Design, construction and evaluation of an automotive bridge jack. Manual scissor jacks are usually used to lift only one corner of the vehicle. Design began by working with a solidworks model to pinpoint weak spots in the design.
The precision threaded shaft means the jack should not lock up as you lift your vehicle. Working principle and all the required information on scissor jack can be found in this report. This is a demo for the woking principle of motorized screw jack by randykarthick mechanical26 aug 2014. A mechanical jack employs a screw thread for lifting heavy equipment. Mathematical model of design procedure is also made which will suppose to help in standardization of scissor jack design by using matlab. You can start with a complete set of requirements, or just a few simple inputs, and let jax online suggest the. No tools required, no loose components or separate parts. Ground clearance of vehicle 280 mm according tyre dimension, we take lift of jack as 100 mm maximum height of jack 355. This type of jack stand is smaller, and is included with many new or used vehicles. A wide variety of double scissor jack design options are available to you, such as double cylinder hydraulic lift, scissor jack, and electric jack.
For safe design we take maximum capacity of jack 700kg since while jack is used other three wheels are in contact with ground so assumption of 700 kg is safe. Ge 410 fall 2005 jim ramirez david hettinger instructor. Connection between the screw jacks is made by spacer couplings and bevel gearboxes. Plus you dont have to worry about the 2 piece handle separating while you are busy cranking. The power screw design of a common scissor jack reduces the amount.
Components of the bridge jack requiring special attention were the top sliders and the pins the hydraulic cylinder acts on. The most common and familiar type of scissor jack to most consumers, though, is a manual jack. This 1 piece design jack handle replacement is much easier to use and has zero flex when turning the jack when the cranking gets difficult. Design and standardization of scissor jack to avoid field failure. Car jacks usually use toggle advantage to allow a human to lift a vehicle by manual force alone. In the case of a screw jack, a small force applied in the horizontal plane is used to raise or lower large load. Phd mechanical dept, vrec, nizamabad 503003 abstract. Designing and calculating the stresses induced in scissors jack for three different materials jaideep chitransh, dilshad hussain abstract. Modified screw jack for lifting operation in industrial.
Use of jacks not designed for a specific vehicle requires more than the usual care in. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. Ball screw jack with you to find the perfect solution to your most challenging applications. Metric single face machine screw jacks mechanical actuators. The husky 1 12 ton scissor jack is the perfect emergency roadside assistance jack. Catia is used to develop and analyzed the scissor jack. A jack is a mechanical lifting device used to apply great forces or lift heavy loads. Introduction the most basic scissor jack design is truly engineering at its finest. Design of mechanisms with scissor linear joints for swept.
Design details of jack the total height of the screw jack 276 mm. Hall 12052005 ii abstract scissor jacks are simple mechanisms used to drive large loads short distances. This allows you to check out or work on a wheel that. Nikam4 1,2,3 department of mechanical engineering, savitribai phule pune university, amrutvahini college of engineering, sangamner. A jack for heavy lifting, operated by a horizontal screw that raises or lowers a frame of hinged, rhombusshaped linkages a jack is mechanical device used to lift heavy loads or apply great forces. For a scissor lift that has straight, equallength arms, i. When inserted and turned clockwise this arm drives the screw through the scissor mechanisms central pivot points thread, elongating the jack and, thus, raising the vehicle. Thompsons legions of fans have waited a decade for this book. Jacks employ a screw thread or hydraulic cylinder to apply very high linear forces. Comdrives are available in 2ton through 30ton capacities with travel speeds up to 35. The compact scissor jack features a compact, lightweight design that fits nicely stored in a garage or your vehicle. When conoveras request to shadow a recruit at the new.
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