Hello every body, i have been searching for scissor jack mechanics and mathematical calculation for ages i hope i can find the answer here. The automatic device for blocking of mechanisms for safe work in any. Kansas city, mo 64153 phone 18168916390 90 days limited warranty for a period of ninety 90 days from date of purchase, sfa companies will. Download scissor lift design plans for kg 2d pdf and dwg drawings with 3d cad models. 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. With inflatable jacks, a bag is placed under the workpiece and inflated to achieve lifting. A scissor jack is mechanical equipment used to lift up.
Pdf on jan 1, 2008, m m noor and others published development of auto car jack using internal. Jacks employ a screw thread or hydraulic cylinder to apply very high linear forces. The data was mainly taken from the internet, particularly from articles, digital copies of books and. The power screw mechanism included in a scissor jack is design to lower the amount of force needed to lift the heavy loads. Please enter your skyjack serial number to check for service bulletins for your machine. Scissor lift jack equations and loading calculator.
This means a custom design needs to be produced for each sales enquiry or order. Scissor sling lift free cad drawings free cad plans and free 3d cad models for free use. Assembly and details machine drawing pdf mechanical engineering taktak decor. Mechanical engineering final year project report pdf download. Here is another model for catia learners, scissor jack.
Worm gear screw jacks with ball screws achieve between 1071 mm per min and 2124 mm per min, depending on size and lead. Installation of the lift table on the floor or in a pit. Jts strong arm jack stabilizers properly installed on front scissor jacks see installation drawings for. Department of mechanical engineering, amrutvahini college of engineering. Car jack is a device used to lift up the cars while. 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. This shopping feature will continue to load items when the. Scissor or toggle jack a toggle or scissor jack is a device which lifts heavy equipment.
The jack is designed to support 25% of the weight of small passenger cars weighing up to 1200 kg. Ball screws are a more advanced screw mechanisms that. Current scissor jacks are also lacking in safety, the base of most scissor jacks is small and there is no support in the direction parallel to the car body when operated properly, so the jack is prone to tipping. Mohammed department of mechanical engineering university of mines and technology, tarkwa, ghana. Hello everyone i am working on a design at the moment using inventor 2012. Rough terrain scissor lifts for repair procedures, fault codes, electrical and hydraulic schematics, refer to the appropriate service and repair manual for your machine.
The grabcad library offers millions of free cad designs, cad files, and 3d models. This pdf contains 24 detailed drawings of miscellaneous parts, to be used for practice with autodesk inventor or any 3d cad package for that matter. Mechanical jacks, such as car jacks and house jacks, lift heavy equipmentand are rated based on lifting capacity for example, the. Modification of the existing design of a car jack a.
May 26, 2017 hello friends welcome to nes learning hope you are doing well. 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. You can make ads in the engineering toolbox more useful to you. Design a car jack that is easier to operate and safer to use than the current standard without compromising cost or storage, and without adding significant weight. Pdf road side emergencies such as tyre punch, is a problem commonly observed in cars. Join the grabcad community today to gain access and download. Scissor jack scissor jacks use linked, folding support members. Such slings are widely used in manual operations in assembly rooms. Scissor lift design calculations pdf scissor lift design is used because of its ergonomics as compared to other. Catia v5v6 tutorial car jack scissor jack design stepby. This item of material handling equipment conveys personnel and cargo in the vertical plane. Design of hydraulic scissors lifting platform thesis 2016.
Some of the parts are a bit more challenging than others, but none of them are meant to be difficult. This was an initial prototype to develop a scissor lift mechanism. Although i am making up the majority of them as i go along. Nikam4 1,2,3 department of mechanical engineering, savitribai phule pune university, amrutvahini college of. They use screw or cylinderbased actuators and are powered by hydraulic, mechanical, electric, or manual methods. A scissor jack is mechanical equipment used to lift up heavy loads. Solidworks tutorial arm drawing 3d things drawing practice technical. Boms, individual 3d parts ass screws, nuts, washers, bearings. Files 26 scissor car jack scissor car jack loading. Solidworks tutorial design and assembly of car jack in. In a number of dealings with contracts, the drawing is an official document and the success or. Jacks can be categorized based on the type of force they employ.
Designing a hydraulic scissor lift mit opencourseware. Abstract car jacks usually use mechanical advantage to allow a human to lift a vehicle by. The operation of a scissor jack starts by using a z shaped crank that is. Camco rv leveling scissor jack socket drill adapter with 14 quick connect shank, works with all 34 hex drive jacks 48865 4. 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. Stress analysis for scissor jack solidworks forums. Solidworks tutorial design and assembly scissor lift in.
This pdf contains 24 detailed drawings of miscellaneous. A scissor jack assembly with doublelead acme threaded screw. Designing and calculating the stresses induced in scissors jack. A mechanical jack is a device which lifts heavy equipment. Design and standardization of scissor jack to avoid field. In this tutorial, we will be automating the creation of a scissor lift. Please click on a lift name below to view pdf cad drawings.
A car jack is a mechanical device engineering essay. When this crank is turned, the screw turns, and this raises the jack. 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.
For this purpose a research of literature and articles was made, that contain missing information of the theoretical part of the problem. Designing a hydraulic scissor lift jeremy schwartz hydraulics are a very powerful tool for applying a ton of force no pun intended where you want, when you want it. Scissor car jack 3d cad model for autocad, solidworks, inventor, proengineer, catia, 3ds max, maya, cinema 4d, lightwave, softimage, blender and other cad and 3d modeling software. I have some knowle simple scissor jack calculations mechanical engineering general discussion engtips. A scissor jack is a mechanical device used to lift a heavy vehicle from the ground for changing. Find lifting jacks on globalspec by specifications. A more compact model was later made, which is about three feet in length, and can lift 112 tons. Nikam4 1,2,3 department of mechanical engineering, savitribai phule pune university, amrutvahini college of engineering, sangamner. Fits in the larger 26x14x16 envelope, but could possibly wedge into the smaller package diagonally. Car jack cad design the objective of this project was to design and assemble a scissor type car jack, and to create a full set of 2d drawings. The user sits on the seat shown at bottom of mechanism and pulls themself up using the handles at the top.
Design and analysis of scissor jack full report download. Speed of travel gear ratio l low speed worm gear screw jacks with trapezoidal screw produce an advance of 0. A jackscrew, or screw jack, is a type of jack that is operated by turning a leadscrew. Download 3d models and 2d dwg cad drawings of scissor coffe table. Scissor car jack a scissor car jack is a type of device that helps to raise a vehicle off the ground. Lift drawings pdf niche lifts independent lift services. Oct 11, 2017 hey guys, i need help doing the stress analysis on this scissor jack. Scissor jack a scissor jack is operated by turning a lead screw. Car jacks usually use mechanical advantage to allow a human to lift a vehicle by manual force alone. The end fits into a ring hole mounted on the end of the screw, which is the object of force on the scissor jack. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users.
Scissor lift drawing pdf where the design, function and operation of such equipment clearly is. This free cad project is a simple example of using autodesk inventor environment for designing crane slings. Pdf development of auto car jack using internal car power. The idea is that i can adjust the fulcrum point of the bars and therefore change the mechanical advantage and weight that i am lifting in the range 25% to 75% of my body weight. Engineering projects solidworks tutorial autodesk inventor interesting drawings drawing machine drawing sheet 3d drawings technical drawings. The power screw design of a common scissor jack reduces the amount of force required by the user to drive the mechanism. A scissor jacks compressive force is obtained through the tension force applied by its lead screw.
Conventional car jacks uses mechanical advantage to allow a. If the load on a screw jack is 50000 lb, the lever. Ratchet jack ratchet jacks have a manual crank and ratchetandpawl design. Jme 4110 mechanical car jack open scholarship washington. A screw jack is a mechanical device that can increase the magnitude of an effort force. Solidworks wont let me perform the stress analysis in assembly so i guess im going to need to perform the stress analysis of each individual components. The hydraulic lift was chosen as a subject of the thesis because it is a perfect. Design and standardization of scissor jack to avoid field failure.
In the case of a scissor jack, a small force applied in the horizontal plane is used to raise or lower large load. The length and width of the scissor lift can be changed. Assembly and details machine drawing pdf mechanical. Heavy duty scissor jack black wheel change quick lift manual car van tyre 2 ton. For a scissor lift that has straight, equallength arms, i. The mechanical compact car lift is a product in which you will be able to lift all four wheels of. Join your peers on the internets largest technical engineering professional community. This jack is mostly used in cars for the remove the tyres we have designed. Our design of the car jack will be implementing an electric motor that will. Department of mechanical engineering, ssvps bsd coe, dhule, maharashtra, india. The effort force for a screw jack when neglecting friction can be expressed as. I i have started to design with the carrier member which is shown in figure 6 and its technical drawing is shown in the drawing section.
Our lift drawings are available to download and provide detailed specifications on our range of lifts. Tonda 2 ton portable car scissor jack for sedan and coupe. Maintenance manual scissor lifts slab scissor lifts this manual includes detailed procedures for each maintenance inspection. Heavy duty scissor jack black wheel change quick lift manual car van tyre 2t. Car jacks usually use toggle advantage to allow a human to lift a vehicle by manual force alone.
Mechanical engineering design technical drawing autocad krishna drawings explosions grim reaper montages sketches. Scissor lifts are devices that use a scissor like mechanism to raise and lower a work platform. The most common form is a car jack, floor jack or garage jack which lifts vehicles so that maintenance can be performed. It is commonly used to lift moderately heavy weights, such as vehicles. Shop for scissor jacks in automotive stands and supports. Pdf design, construction and testing of an electric powered. Mechanical, diploma mechanical students for final year submission. Ive attached the assembly file along with the component files. Car jacks use mechanical advantage to allow us to lift a vehicle by manual force alone. Through use of urethane or similar material as a braking means, the jack assembly is operable with a self locking action over a wider range of loads and especially at lower loads where an acme loading phenomenon that results in said self locking action has previously been unattainable. Scissor jack design project gen5967v2klo documents and ebooks. Skyjack technical publications home skyjack documentation. Most scissor jacks are similar in design, consists of four lifting arms.
The idea is that i can adjust the fulcrum point of the bars and therefore change the mechanical advantage and weight that. Although mini jack are also produced, they are not a recognized standard type of floor jack. The drawings prepared by any technical person must be clear, unmistakable in meaning and there should not be any scope for more than one interpretation, or else litigation may arise. A mechanical jack employs a screw thread for lifting heavy equipment. No tools required, no loose components or separate parts. Simple scissor jack calculations simple scissor jack calculations mike009 computer op 15 mar 08 05. Simple scissor jack calculations mechanical engineering. They are an economical choice for relatively longstroke jacks. Introduction the required scissor lift as per the technical specifications annexure1 mentioned. Big red t10152 torin steel scissor lift jack car kit, 1. The original jack is about four feet long, a foot wide, and weights around 200 poundsthey can lift 410 tons. Imagine you work for a company that designs and manufactures scissor lifts, where each scissor lift you design is the same but different. Scissor lifts may be stationary, selfpropelled, or vehicle. That is, the linear speed is 375 mm per min at 1500 rpm.