CONTENTS
1 Introduction 3
2 Technical and scientific aspects 3
3 Disassembly 8
1 INTRODUCTION
This project involves dissembling a gearbox, analysing the material that it has been manufactured from and how these materials were manufactured. Designed by Bonfiglioli, this project will be dissembling their worm drive gearbox.
The modern world needs machines that have great power, some of the applications only need power; worm drives have a good power output due to their mechanical advantage which is equal to the number of teeth on the output drive. Coupled with a high-power motor the torque that can be produced from the worm drive is far superior to any other type of gearing. As a consequence, the forces in the worm drive will be quite high.
The Bonfiglioli worm drive has been made from as fewer components as possible, the driving components which have been heartened and specified to a high rating. The understanding is that the usage of the device is likely on a low speed transmission line or conveyor system in a factory. Furthermore, taken from the understood purpose further factors in its manufacturing nee to be considered; this will be looked at through this report.
This report will go though the manufacture of the drive in great detail, sections covered in this report will be the drives technical background and scientific aspects: including a description of the disassembly, how the parts are related and how they differ. The report will go on further to show how the parts fit together in a series of images and the critical features and components will be highlighted. Further information will be covered including a basic static analysis of loading and material selection verification.
2 TECHNICAL AND SCIENTIFIC ASPE...
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... hand press should then be used to remove the Wormshaft which is kept in place with a light press fitting. A hydraulic press does not offer the fidelity which a hand press can. It is best practice to use a hand press for light press fittings.
Remove Oilseal (8) from Wormshaft (3) and Circlip (unnumbered) from the Wormshaft. If any aluminum shavings/balling can be seen the whole Wormshaft will require replacing.
The Bearing (5) can be removed from the Wormwheel by using the hand press and a matching template to hold the assembly.
The assembly should now be fully disassembled with separate components: components may be removed from respective shafts if needed. Bonfiglioli has indeed manufactured their gearboxes to take advantage of many items to make the disassembly fast. They also have minimised the points of failure and made the remaining ones easy to access.
* Note that the primary clutch (on the left) never stops spinning, but the secondary (right) does stop spinning at idle speeds.
When the liquid level is above the calibration line on the pipette, remove the bulb quickly and put your thumb or index finger over the pipette. Carefully “roll” finger to the side and allow the liquid to drop until the meniscus is level with the mark. Then hold the pipette over the flask to receive the liquid and remove the finger. Allow the liquid to drain out.
Braham, Jones. “Keep Your Eye on the Bat.” Machine Design 63.13(1997). 29 Mar. 2002 http://newfirstsearch.oclc.org
Taskforce, M. E. W. (2012, April 1). People: Department of Mechanical Engineering, University of Melbourne. Retrieved 22 May 2014, from http://www.mech.unimelb.edu.au/people/staff.php?person_ID=188333
Fabrication at the factory utilizes a mix of robotics and manual labor to produce the body of the V-Rod. Robots that are designed to cut pipe are capable of completing a single operation within 3 seconds. Other fabrication robots utilize 1800 watt lasers that can perform cutting operations at the rate of 100 inches per minute. Where robotics can be used to perform high speed cutting and welding operations, skilled workers are a...
...late 17th century, and beginning of the 18th century, transportation was favored by American society so much, the wealthier would hire chauffer’s to take people places. So not only did the motor produce a better and more efficient life style, it also created a huge business industry, as we know it today called, “valeting”. The actual motor worked like this. “Two cups filled with mercury would contain a magnet and a wire with one being fixed and the other free to move. Whenever a current was passed through the wire, the free moving magnet or wire would revolve around its fixed partner due to the electromagnet forces being produced.” (History of Innovation). This first motor was a prime example of the fact that movement could be created by electricity and electricity could be created by friction. This motor was the most useful and applicable invention in the 1800’s.
These advantages, however, do not balance the many short falls of the belt drive design.
Step 2: Remove the wheel cover by prying it away from the rim using the flat end of the lug wrench. If your vehicle is equipped with custom wheel covers or locking lug nuts, consult the owner's manual for proper removal instructions.
A direct current in a set of windings creates a polar magnetic field. A torque acts on the rotor due to its relation to the external magnetic field. Just as the magnetic field of the rotor becomes fully aligned with the external magnetic field, the direction of the current in the windings on the armature reverses, thereby reversing the polarity of the rotor's electromagnetic field. A torque is once again exerted on the rotor, and it continues spinning.
The basic trimmer works by the engine driving a multi-bearing supported hardened steel shaft housed in an aluminium tube through a centrifugal clutch this shaft is connected to a “head” that holds a nylon line that spun at high revolutions per minute (RPM). This nylon line then cuts the grass by hitting the blades of grass at high speed, this cause the grass to be severed at the point of impact. Thus trimming the grass.
"Purchasing Your First Robotic Welding System | Lincoln Electric."Lincolnelectric. N.p., n.d. Web. 08 May 2014.
This hopefully adds some insight into the use of electric motors, and the principals of them that make these motors work. Such as electromagnetism, binary switches for DC motors, and the selection of a running frequency of a motor through the use of an oscillator.
The topic of magnetic disks is one that involves many physics related phenomenon. The intricate structure and design of “Magnetic Disks” (or hard disks) in computers include the principles of Fluid Flow, Rotational Motion, Electromagnetism, and more. This paper will focus mainly on the previously listed physics occurrences, and the design that goes into engineering the magnetic disk to include them. These physics principles are utilized in such a way that makes the hard disk a very common and useful tool, in this day and age. To most people, the magnetic disk is the most important, yet most mysterious, part of a computer system. A hard disk is a seal unit that holds computer data in the form of magnetic patterns.
Pneumatic actuators enable large forces to be produced from relatively small pressure changes. These forces are often used with valves to move diaphragms to affect the flow of liquid through the valve. It is responsible for converting pressure into
My first interest in Supply Chain Management resulted from my experience. Ever since I was young, I wanted to understand not just the ‘how’ of Mechanical engineering problems, but also why machines worked at the fundamental level. In particular, I was interested in learning the application of experimental techniques and principles governing Physics to solve problems. Therefore, I found the pursuit of B.E. in Mechanical Engineering almost a necessity, given my need to satiate my curiosity to gain deeper knowledge of that area.