You selected the right AGMA Class gearbox . You calculated the belt tension perfectly. But the moment you hit "Start," the belt snaps or the gearbox makes a terrifying clunk. The culprit is likely your Starting Method . In conveyor systems, the starting torque profile matters more than steady-state power. Note: We previously discussed VFDs as Energy Savers for pumps and fans. For conveyors, however, the goal is not lowering your electric bill—it is preventing your gearbox from exploding. Table of Contents 1. The Physics of Shock Loads 2. Why Soft Starters Stall Conveyors 3. The VFD Torque Advantage 4. Comparison: Cost vs. Protection 5. Final Verdict Advertisement 1. The Physics of Shock Loads When an AC induction motor starts Direct-On-Line (DOL), it draws 600% to 800% of its rated current (Inrush Current). More importantly, it produces a sudden spike known as Locked-Rotor Torqu...
In our previous tutorials, such as [ 3-Position Motion Generation Synthesis with Alternate Moving Pivots ], we used a "standard" synthesis approach. We defined the moving coupler first, and the geometric construction dictated where the ground pivots (O 2 and O 4 ) had to be. But what if you don't have that freedom? Advertisement In real-world machine design, you often have a pre-existing frame or base. You cannot drill holes just anywhere; the ground pivots must be located at specific, available points. In this scenario, the standard method fails because it gives you valid kinematic solutions that might require mounting a pivot in thin air or inside a motor. The Solution: Kinematic Inversion To solve this, we use the Inversion Method . The Core Concept Instead of looking at the mechanism from the perspective of a stationary ground and a moving coupler, we invert our perspective. We pretend the Coupler is stationary...