SMALL SCALE MECHANIZED STONE CRUSHER: COMPUTER AIDED DESIGN OF COMPONENTS

ABSTRACT

Presently, there is massive building and construction in Kenya. Both the government and private sector have been witnessed to invest heavily in the construction, real estate industry and infrastructural developments in order to achieve vision 2030. Subsequently, stone crushing has gained momentum in the recent past due to high demand for crushed stones. Conversely, Kenyans in the industry have lacked satisfactory wealth to procure proper machines to produce quality crushed stones meeting the market demand. Instead, they opt to use crooked ways like hammer and anvils, which are labor intensive, results to low output, produce low quality of aggregates and pose high health risks.

 A stone crusher, which is an appliance intended to lessen the size of hefty rock units like mineral ore into smaller ones through application of compressive forces in crushing can be an aid indeed. This device is pigeonholed by the manifestation of a reciprocating and a stationary jaw plates.

During this entire process, we the design team have considered affordability to the common Kenyan working at the quarries as a key concern and objective of our project, further we have considered the weight of the final design, the energy consumption of the machine, adaptability,

and possible setbacks such as excessive stresses on the shaft that might cause the design to fail.

This study, for convenience purposes, discusses the design of each components of a small scale stone crusher. This study therefore principally presents a design of a mechanized small-scale stone crusher accomplished through the application of CAD. Computations of dimensions of each component are done for design purpose.

In this project, computations of the operating parameters and dimension of major components are shown. A small scale stone crusher operating at critical velocity of  R.P.M and a crushing capacity of tonnes/hour, consuming  power of  is designed. Finally, the components are designed using computer aided design and the drawings of each component are shown.