4 Bar - 11/6/19

grabcad

Engineer Designs Four-Bar Mechanism for Excavator Digger The four-bar mechanism is a fundamental component of many machines, including excavators used in construction and mining. In this project, we will focus on designing such a system for a digger. To begin with, let's define the problem statement: design a four-bar mechanism that can move the bucket attached to a digger up and down as well as swing it from side to side. The mechanism should be able to withstand heavy loads and operate smoothly under various conditions. Firstly, we need to choose suitable materials for our components. We will select steel alloys due to their high strength-to-weight ratio and resistance to corrosion. Next, we'll calculate the dimensions of each component using kinematic equations based on the required motion range and speed. This involves determining the lengths of the bars (links) that make up the four-bar mechanism. After calculating the dimensions, we will create a computer-aided design (CAD) model to visualize our mechanism and check for any potential issues before manufacturing it. Once we're satisfied with our design, we'll create prototypes using 3D printing technology. These prototypes will undergo rigorous testing to ensure they meet our performance criteria. Finally, after refining our design based on the test results, we can produce a working four-bar mechanism that efficiently moves the digger's bucket up and down and swings it from side to side.