General assembly drawings, mechanical parts drawing. Millions of users download 3d and 2d cad files everyday. In this, the screw 3 works in the nut 2 which is press fitted into the main body 1. Assembly drawings screw specification technical standard. Your machine screw jack is a high quality, sturdy unit designed to. Assembly drawings indian institute of technology madras. These are the drawings as pdf files used during the course listed in the order they will be tackled. If assigned, convert dimensions to decimal inches, or redesign for metric dimensions. Screwjack pedestal elevations screwjack pedestal elevations.
When boots are added to machine screw jacks, the closed height of the jack may be increased. The tool holder may be rotated and clamped to facilitate the use of any one of the tools at a time. Screw jack autodesk inventor part design and assembly. Draw the fullsection front view and halfsection side view of the object problem from book machine. Get free download pdf file format how to draw a bolt on that blog. Screw jacks are used for raising heavy loads through very small heights. Accessory model numbers, range of adjustment including tabs, spacers, base levelers, fixed height pedestals. Draft a details and assembly drawing for the milling jack. Akyurek me 114 computer aided engineering drawing ii assembly drawing exercises therefore, keep number of views minimum necessary to describe the assembly. Powerbuilt alltrade 640912 black 3 ton, allinone bottle jack. Crosshead assembly 1 crosshead assembly figure 2 the exploded state of crosshead assembly figure 1 the crosshead assembly in this project, you will create all components of the crosshead assembly and then assemble them, as shown in figure 1. Hello sir, what does the knurling on the screw spindle describe. Assembly drawing of screw jack pdf download free software.
The details should have all necessary dimensions and notes, and titled and numbered. Cim oct2016, april 2016,cim oct2015, april 2015, april 2014, oct2014 question papers. Estimate the overall dimensions of the views of the assembly drawing and make the outline blocks for each of the required view, leaving enough space between them, for indicating dimensions and adding required notes. A lifting nut also known as travelling nut moves along the screw. It is drawn clearly and concisely to allow a detailer of fabricator to locate all the components. We make sure that our products and services exceed our customers expectations. It is common to have a single orthographic assembly view, such as the front view. With a body size of only 50x60x50mm this compact yet robust screw jack has a load capacity of 2. R 1 f effort force at the end of the arm or handle lb, n q weight or load lb, n p pitch.
Assembly drawings free download as powerpoint presentation. Result thus the 3d assembly of the universal coupling has been created on the software catia v5 with accurate dimension and with all respects. You should add all the necessary dimensions, properly placed, and finish marks as required. Big red t92003b torin hydraulic welded bottle jack, 20 ton 40,000 lb capacity. However, selflowering or creep could result from vibratory conditions. Worm gear screw jacks with ball screws achieve between 1071 mm per min and 2124 mm per min, depending on size and lead.
Figure 12 shows the hidden moving components of the jack by making their masking components transparent. Very common throughout the world, screw jacks are found wherever there is a need to lift, position, align and hold load. Nagaraju assistant professor ellenki institute of engineering and technology. Linear actuator technics contents 3 7 3 worm gear screw jack 33118 3. Rods are pinned to screw support and stationary jaw using 3 16 roll pins vise handle is pressed onto screw, then pinned using 1 8 roll pin thrust washer is pinned to screw using 1 8 roll pin. Assembly drawings typically include annotations that identify and describe the. Also you will create an exploded state, shown in figure 2. Metal lathe projects mechanical projects mechanical engineering design mechanical design isometric drawing exercises drawing machine cad drawing detailed drawings technical drawing. That is, the linear speed is 375 mm per min at 1500 rpm. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. How tight should a screw be, and how does that affect how much load it can.
The assembly drawing should include part numbers, and parts list. Bench vice assembly 1 in this project, you will create the bench vice assembly. Figures b through e shows the views and dimensions of the components of the bench vice assembly. Chapter 12 assembly drawings universiti teknologi malaysia. It is recommended that you work at the course pace and use the extended exercises for additional work between sessions. See more ideas about cad drawing, drawings and mechanical design. While calculating screw jacks, relating the above two aspects becomes crucially important. Screw jacks are devices which has made life easy especially with lifting of heavy loads above the ground levels. Knurled head disengages when the indicated end force is reached. Speed of travel gear ratio l low speed worm gear screw jacks with trapezoidal screw produce an advance of 0. Since 1972, technico has believed in consistently providing value to our customers, through operational excellence and continuous improvement. Representing of gears and gear transmission assembly drawing straight teeth. They can be used to push, pull, tension, lock, unlock, tilt, pivot, roll, slide and lift or lower loads. When specified, the closed height of the jack andor the protection tube length may be increased.
Sep 12, 2017 this video is how to draw screw jack assembly drawing this video is assembly drawing of screw jack important for machine drawing subject in diploma mechanical 2nd year it is useful for mechanical. A bom or bill of materials of the general assembly drawing will list out each part number, part name, and part quantity. The grabcad library offers millions of free cad designs, cad files, and 3d models. A sub assembly drawing is an assembly drawing of a group of related parts, that form a part in a more complicated machine. It essentially has a listing of all parts and subassemblies that make the final product. Assembly drawings introduction a drawing which displays the parts of a machine or a machine unit assembled in their relative working positions is known as assembly drawing. A jackscrew, or screw jack, is a type of jack that is operated by turning a leadscrew. The drawing also includes the overall dimensions of the components. Join the grabcad community today to gain access and download.
Assembly and details machine drawing pdf slideshare. A subassembly drawing is an assembly drawing of a group of related parts, that form a. Most of these hidden components are shown in the design animation c and d are not shown directly in the animation, but the power screw can be seen. Draw the fullsectioned assembly drawing of the screw jack in front view. Design and analysis of press tool assembly raveendra m. Complete pdf from an assembly drawing solidworks forums. On request cubic machine screw jack 10 kn to 100 kn.
Draw two views of locking the nut with set screw if d 30mm. Au tomobile screw jacks or jack screw is a device that is used to lift an automobile in order to carry out repairs or maintenance. Screw jacks are designed with materials having the capabilities. Abstract press working may be defined as a chip less manufacturing process by which various components are made from sheet metal. Draw the axes of symmetry for all the views of the assembly drawing. Prolift bs20d grey hydraulic bottle jack 20 ton capacity. Their high reliability and synchronization makes screw jacks suitable for a wide variety of uses that alternative methods of handling cannot achieve. The effort force for a screw jack when neglecting friction can be expressed as. Assembly drawings ramsbottom safety valve, feed check valve. Screw jack drawing pdf mep 201 mechanical engineering drawing tutorial sheet no. The coefficient of friction at the screw threads is 0.
The parts list may be placed in the lower right corner of the drawing. Common all over the world, screw jacks are vital tools wherever there is a need to hold, lift, align, and position a load. Duffnorton mechanical actuators, screw jacks and power transmission products are. Sep 01, 2017 screw jack manual drawing part6 duration. The details of the square tool post are shown in image. This is used to hold four different tools at a time. How a screw jack works a screw jack is a gearbox assembly either worm gear or bevel gear and a transmission product lead screw, ball screw or roller screw which through use of a motor is used to convert rotary into linear motion.
Machine vice models and drawings iowa state university. Their high synchronization and reliability make them suitable for a broad range of uses where alternative handling methods cannot achieve tangible results. The assembly drawing would be such that it should satisfy. A screw jack is a mechanical device that can increase the magnitude of an effort force. As an added benefit, bevel gear jacks also act as miter boxes, making them an ideal choice for multi jack systems. You can include balloons in your drawing views to identify specific parts.
Tech student ellenki institute of engineering and technology. The assembly drawing the assembly drawing is laid out showing all components in the assembled position, which illustrates the working relationship of one component to another. Calculating screw jacks and their operation bright hub. Stainless steel metric machine screw jack 10 kn to 300 kn. It is commonly used to lift moderately heavy weights, such as vehicles. The lifting nut of jack screw is made of bronze to decrease friction. Creating a 3d assembly drawing in this chapter, you will learn the following to world class standards. Assembly of screw jack, computer aided machine drawing camd of vtu syllabus prepared by hareesha n gowda, asst. Machine drawing key solution designdme key solution. Ellis manufacturing company mini screw jack adjustable support jack range of adjustment 2. In some models of jack screws, the lifting screw does not move up and down. Detail and assembly drawing of the following using auto cad. Screw jacks supplier certified cad drawings and 3d part. The tommy bar 7 is inserted into a hole through the enlarged head of the screw and when this is turned, the screw will move up or down, thereby raising or lowering the load.
Modular assembly allows many different arrangements. 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. 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. General instructions your machine screw jack is a high quality, sturdy unit designed to give. Overtravel could cause the lifting screw to become disengaged from the drive sleeve. The screw adjustment allows you to make small changes to the height of your load. Conventional 2d cad downloads in pdf, dwg and dxf formats. From assembly drawing the macro must look on all components and create one complete pdf fil with all drawings of components who is in the assembly. When a machine is designed, an assembly drawing or a design layout is first drawn to clearly. Drawing assembly and details machine drawing pdf mechanical projects, mechanical engineering design, engineering.
In the illustration, the loco jack screw assembly drawing is shown with. Apr 04, 20 assembly of screw jack, computer aided machine drawing camd of vtu syllabus prepared by hareesha n gowda, asst. Mechanical drawing assembly drawing university of technology. In the assembly of several jacks, to calculate the total efficiency of the transmission, it should be considered a decrease of 5% performance by each screw jack. After finishing assembly, check whether the various parts have been connected properly or not by rotating the view.
127 1041 657 1101 1331 859 1300 1 684 798 1471 1227 1202 1545 199 1059 963 651 642 102 1420 1614 1285 490 1303 1078 449 1171 43 267 798 37 421 300 834 1010 618 615 469 762 1155 1141