The operation of a scissor jack starts by using a z shaped crank that is. Compact design with collapsible lever offers easy operation and simple maintenance. The power screw mechanism included in a scissor jack is design to lower the amount of force needed to lift the heavy loads. Nikam4 1,2,3 department of mechanical engineering, savitribai phule pune university, amrutvahini college of. Any mechanical component ever designed can theoretically fail, but mechanical components designed to move tend to fail at a higher rate. Scissor lift jack equations and loading calculator. Design and fabrication of gear box full report download gearbox. Design and analysis of hydraulic scissor lift by fea sabde abhijit manoharrao1, prof. Modification of the existing design of a car jack a. A jackscrew, or screw jack, is a type of jack that is operated by turning a leadscrew.
The primary mechanism with which force is applied varies, depending on the specific type of jack, but is typically a screw thread or a hydraulic cylinder. Conventionally a scissor lift or jack is used for lifting a vehicle to change a tire, to gain. The operation of a scissor jack starts by using a z shaped crank that is mounted to a small hole on the mechanism. The bottom is enlarged, the top steel column can be disassembled. The hydraulic lift was chosen as a subject of the thesis because it is a perfect example of mechanical engineering field. While calculating screw jacks, relating the above two aspects becomes crucially important.
The a1022, which is identical to the 22b except for an aluminum housing, is the. For safety design weight is taken as 400 kg or 4000n. This mechanism combines a result of several main fields of engineering and at the same time, it is simple and accessible for understanding. Most scissor jacks are similar in design, consists of four lifting arms, a base plate, a carrier plate, two. The choice of material is very important in the design of an automobile jack as in the case of other engineering designs. Designing and calculating the stresses induced in scissors jack.
Car jacks usually use mechanical advantage to allow a human to lift a vehicle by manual force alone. Pdf a scissor jack is a mechanical device used to easily lift a vehicle off the. Detailed design procedure of a quick lifting screw jack is presented in this paper. Looking for downloadable 3d printing models, designs, and cad files. City college of new york school of engineering mechanical engineering department spring2014 mechanical engineering i 6500. Mechanical machinery jacks are good for repairing vehicles, lifting trucks, railway maintenance, construction, mining, and agriculture.
Bacon 4 scissors lift platform with electronic controlarturo valencia ochoa jaime antonio uribe. Screw jacks are devices which has made life easy especially with lifting of heavy loads above the ground levels. Design and fabrication of gear box full report download. A scissor jack is a mechanical device used to lift a heavy vehicle from the ground for changing the wheel and for maintenance purpose. Pdf design and fabrication of hydraulic scissor lift. Design and standardization of scissor jack to avoid field failure. Mechanical scissor jack, view mechanical jack, huanya. It is one of the most important decisions a designer is called to make.
We design jacks capable of lifting loads as heavy as 200 tons, and our team of experts is willing and eager to find the best lifting system for your facility. Modified screw jack for lifting operation in industrial. Mechanical jacks are known for their versatility they can operate in any position, and are widely regarded as backup jacks for when hydraulic systems fail. Priyanka, design and fabrication of motorized screw jack for four wheeler, a project report, department of mechanical engineering, gokaraju rangaraju institute of engineering.
Preeti jatti published on 20191206 download full article with reference data and citations. Sep 08, 2015 design and fabrication of a power scissor jack 1. Design and analysis of scissor jack manoj r patil1 and s d kachave1 corresponding author. Simple scissor jack calculations simple scissor jack calculations mike009 computer op 15 mar 08 05. Designing and calculating the stresses induced in scissors jack for three different materials jaideep chitransh, dilshad hussain abstract. The scissor lift will be incorporated onto a frame and be mounted below the dump bed. Design and standardization of scissor jack to avoid field. The focus of this project is to design and build a lift for surgeons in the operating room. The goal of the study is to design the hydraulic scissors lift to lift up to a height of 1. A jack is a mechanical device used as a lifting device to lift heavy loads or apply great forces.
It acts in a direction perpendicular to the load w. 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. Target the critical linkage, where max stress may occur. Simulative calculation and optimal design of scissor lift.
Mathematical model of design procedure is also made which will suppose to help in standardization of scissor jack design by using matlab. Having been accepted for years as reliable tools for a variety of jobs, screw jacks have a simple, sturdy design that is ideal for supporting. Design and fabrication of automated scissor jack written by mr. Lead brand scissor jack is a fast and laborsaving design, load 1. A scissor jack is mechanical equipment used to lift up heavy loads. Calculating screw jacks and their operation machine and mechanism design by swagatam mechanical engineering screw jacks are mechanical devices which are used to raise and lower heavy objects vertically through the application of a smaller external force in a circular path. Scissor jack design project free download as word doc. 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 the wheel. Department of mechanical engineering, ssvps bsd coe, dhule, maharashtra, india. Design and fabrication of motorized automated object lifting jack international organization of scientific research 7 p a g e 1. The terms scissor comes from the mechanism utilized which is configured with linked, folding supports in a crisscross x pattern.
Jan 29, 2019 design pressure means the relief valve opening pressure. Kansas city, mo 64153 phone 18168916390 90 days limited warranty for a period of ninety 90 days from date of purchase, sfa companies will. White paper creating highquality automotive embedded software. Aug 28, 2014 this feature is not available right now. Design of scissor jack is done with proe and model assembly is shown in figures 1 to 3. The construction and load distribution represent statics. Pdf scissor lift design for use in the automotive industry. Mechanics and machine design, equations and calculators. Fundamentally two important parameters go hand in hand with the operations of a screw jack, namely the weight which is being elevated and the effort applied external for the purpose. Mechanical jacks screw jacks, automotive scissor jacks, and.
A mechanical jack is a device which lifts heavy equipment. Jacks employ a screw thread or hydraulic cylinder to apply very high linear forces. The paper describes the design as well as analysis of a hydraulic scissor lift having two levels. The design is fundamentally a modification of the conventional scissor jack. The most common form is a car jack, floor jack or garage jack which lifts vehicles so that maintenance can be performed. Chironis, mechanisms and mechanical devices, mcgrawhill, new york, 2001 2. Establish the sizes of the linkages and specify dimensions and location of joints.
The compact size and light weight make it easy to position and handle design makes it an effortless lift. Design and fabrication of motorized automated object. Mechanical jacks screw jacks, automotive scissor jacks, and trailer stabilizing stands. Design and fabrication of automated scissor jack ijert. Introduction to power scissor jack jack is a mechanical device used to lift heavy loads or apply great forces. A p p l i e d m echan e ornal of pplied j mechanical. If the tyre gets punctured the driver has to undergo a lot of pressure and rigorous mechanical work to lift the car using a screw jack. Design and analysis of scissor jack ppt,ask latest information,abstract,report,presentation pdf,doc,ppt,design and analysis of scissor jack ppt technology discussion,design and analysis of scissor jack ppt paper presentation details. A mechanical jack employ a square thread for lifting heavy equipment. In this paper, a unique design of scissor jack is compile to lift low as well as heavy. Car jacks use mechanical advantage to allow us to lift a vehicle by manual force alone. Design of mechanical hydraulic jack international organization of scientific research 16 p a g e weight to offer a lifting capability ranging from one hundred to several tons.
If the design of machines is of real interest, you should take a course on the design of mechanisms. Design and analysis of scissor jack full report download. Index terms scissor lift, actuator, mechanical advantage i. More powerful jacks use hydraulic power to provide more lift. Please type your request about mechanical scissor jack design project pdf0 cbsemechanical scissor jack design project pdf in this blank text editor available at right side and save by clicking post thread button available at this page bottom side request example. Aher department of mechanical engineering, amrutvahini college of engineering. Nikam4 1,2,3 department of mechanical engineering, savitribai phule pune university, amrutvahini college of engineering, sangamner. A significant amount of work will be done by the actuator in lifting the mass of the scissor lift itself to any given height hence, this work must be accounted for. How to design a double scissor jack mechanism quora. Hydraulic jack is based on the pascals law whichstates that increase in. The power screw design of a common scissor jack reduces the amount of force required by the user to drive the mechanism. The most common form is a car jack, floor jack or garage jack, which. Hi am mohamed i would like to get details on mechanical scissor jack design project pdf0 cbsemechanical scissor jack design. The widest selection only simplex can offer a full range of ratchet jacks, screw jacks, superjacks, pushpull jacks and mine roof supports to fit a broad range of applications and use.
Modified screw jack for lifting operation in industrial setting. Design of hydraulic scissors lifting platform, 41 pages. Scissor lifts, a staple of mechanical design, especially in competitive robotics, are a type of linkage that can. Pdf design and standardization of scissor jack to avoid field. Catia is used to develop and analyzed the scissor jack. Jacks can be categorized based on the type of force they employ. Design and analysis of scissor jack full report download mechanical project introduction mechanical jack a jack is mechanical device used to lift heavy loads or apply great forces. A self locking, antikickback operating lever reduces injuries. Download as docx, pdf, txt or read online from scribd. Simple scissor jack calculations mechanical engineering. Description this scissor lift will reside on the trailer frame underneath the dump bed. A jack is a device that uses force to lift heavy loads. A mechanical jack is a device which lifts weighty or heavy. Design and analysis of hydraulic scissor lift by fea.
Introduction hydraulic jacks home page information archive. The scissor jack supports quarter of total vehicle mass only, which lies between 300 kg3000n to kg0n. Mohammed department of mechanical engineering university of mines and technology, tarkwa, ghana. Mechanics and machine design, equations and calculators engineers edge welding training welding basics for beginners potential work in metal welding discover this info here. A gearbox, also known as a gear case or gear head, is a gear or a hydraulic system responsible for transmitting mechanical power from a prime mover an engine or electric motor into some form of useful output. Camco rv leveling scissor jack socket drill adapter with 14 quick connect shank, works with all 34 hex drive jacks 48865.
Bottle jacks feature a vertical shaft, which supports a platform called a bearing pad that directly bears the weight of the object as it is lifted. Mechanical jacks screw jacks, automotive scissor jacks. 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. A mechanical jack employs a screw thread for lifting heavy equipment. As a screw driven mechanical system, the jack will be manually operated and. Jacks employ a screw thread or hydraulic cylinder to apply linear forces. Maker shop man cave garage woodworking bed mechanical engineering shop plans drafting desk car accessories youtube welding. Mechanical jacks 105 ratchet jacks 5 ton ratchet jacks these units are all mechanically identical and vary only in stroke and height. It is commonly used to lift moderately heavy weights, such as vehicles. Scissor jack force analysis scissor jack force analysis scissor jack force analysis scissor jacks are simple mechanisms used to drive large loads short distances. Jme 4110 mechanical car jack open scholarship washington. Introduction scissor lifts, as depicted in figure 1. An awesome book containing many great mechanism ideas is n. Executive summary the focus of this project is to design and build a lift for surgeons in the operating room.
A p p l i e d m echan e ornal of pplied j mechanical engineering. The most common form is a car jack, floor jack or garage jack, which lifts vehicles so that maintenance can be performed. It has been well documented that hydraulic floor jacks can and will. Design and fabrication of motorized screw jack for a four wheeler a project report submitted in partial fulfillment for the award of the degree of bachelor of. A jack is a mechanical lifting device used to apply great forces or lift heavy loads.
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