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Piston forces at individual tilts of the BD arm Angle α of the BD armÅnglearm˚armÅngle β of the piston AE˚PistonAE˚ AE˚Piston force N

Piston forces at individual tilts of the BD arm Angle α of the BD armÅnglearm˚armÅngle β of the piston AE˚PistonAE˚ AE˚Piston force N

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The paper deals with the engineering design of lifting device weighing up to 3.5 tons. The first part is devoted to market research and the use of lifting equipment. Variant with a scissor construction and a hydraulic drive is chosen. The design itself follows. The machine composes five main parts: the lower frame, the scissor structure, the ramp,...

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Context 1
... í µí°¹í µí°¹ í µí±–í µí±– í µí±–í µí±– = 0 → í µí±ƒí µí±ƒ í µí±–í µí±– − í µí°¹í µí°¹ í µí±–í µí±– = 0 → í µí°¹í µí°¹ í µí±–í µí±– = í µí±ƒí µí±ƒ í µí±–í µí±– → í µí°¹í µí°¹ í µí±–í µí±– = í µí±ƒí µí±ƒ. í µí±í µí±í µí±í µí±í µí±í µí±í µí±í µí± By calculating the system of equations, we achieve equation 8, which can be used to determine the required force of the piston in any position: Based on the derived formula for calculating the force of the piston AE and the known angles of the arm BD and the piston AE from the geometry, a clear Table 1 was compiled, where the forces of the piston AE at individual inclinations of the arm BD are described. This development of piston force is graphically shown in Figure 6. ...