Monday, April 22, 2019
THE GEARED SYSTEM AND THE GEAR BOX Coursework Example | Topics and Well Written Essays - 1250 words
THE GEARED SYSTEM AND THE GEAR BOX - Coursework ExampleTheory has it that the larger the accessory the less(prenominal) the revolution and the reverse are also true. But can this be explained tryally? Questions that are of unfathomed and the experiment seek answers to are what is the slant musical arrangement? What does the mongered wheel system entail? And last nevertheless not least, what objectives define this experiment? A gear is a common device that is used in transmission of power in engineering. It is an essential component in running of automobiles and machinery (Uicker 67). A geared system includes any system that is toothed and designed for transmission or receiving of motion by means of apply successive engaged teething. The wheel is called the larger wheel where as the pinion is referred to as a littler gear. A gear is used in engineering situations. It facilitates the rotational pep pill, the transmission of power (torque) and the direction of siding and inp ut shaft. Simpler gear specifications occurs in a gear ratio whereby the ratio of the go of hearing teeth that are the driving gears to the numbers of hearing teeth on the driven gear could be to a greater extent or less than one. In cases where value of the ratio is more than one, this will lead to a trim driving rotational speed, and in cases where it is less than one, it could give an increased speed. This experiment seeks to study different gear arrangements and some uses of the gear system. An automotive gear is a gear system that is used in the automotive industry (Uicker 92). This gear gives out a high torque and converts the mechanical energy in a smooth and noiseless way. Turbine gears, on the other hand, are used in minimization of power and noise. worm gears are gears that are used in driving of the tooth wheel rim that is positioned on the turbines bearing. The objectives set for this experiment was to study different arrangements of gears including worm gearboxes, a utomobile gear boxes, as well as, turbine reduction gear boxes. Theory. The primary(prenominal) specification of the parameters of the gears includes the number of the gears teeth (z), the circular pitch diameter of the gear (d), and the module (m). The module, m, can, therefore, be condition by the following equivalence m= d/z, d is the path diameter which could transmit couple motion as that of the actual gear by a pure rolling. The gear ratio or the torque ratio can also be termed as the mechanical advantage. For a basic gear train that has two gears, input gear drives output gear. The teeth of the gear are normally make in a manner that the pitch circles of one gear rolls on another without slipping (Uicker 42). The speed (v) of the contact point of the pitch circles are equal and are given by the following equation V = r A w A = r B w B, where the input gear (GA) has a radius (r A) and an angular velocity (w A), where as the output gear (GB) has a radius (r B) and angular v elocity (w B). The radius of the pitch circle is directly proportional to the number of teeth in gear. This, therefore, implies that the number of teeths ratio is equal to the radiis ratio, that is W A/ w B= r B/ r A = N B/N A. Where N A is the input gears total number of teeth where as N B is the output gears number of teeth. Therefore, the gear ratio for a basic gear train is equal to R= w A/ w B = N B/ N A. This equation implies that if the number of teeth in the input gear is smaller than that of the output gear, then the input gear has to go through a faster rotation in comparison with the output gear. Observations. The different types of the gear teeth were observed in the laboratory and their names and diameter recorded in the table shown below. Name of the gear Diameter of the gear(cm) inaugural gear 13.50 2nd gear 7.25 3rd
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