Harvey's Pump Shaft Meeting

Date: 2025 04-April 30

Ampli-speed
Need a flex coupling
Need to reduce speed and torque for pump #1

Goal:

• Mechanical fuse, sacrificial weak leak, to mitigate breakage of the shaft via the rigid coupling
• Dial back the speed
• Build a CAD model

Model:

• Falk Steelflex grid coupling

Calculate the max torque - to select a coupling.

• select a target threshold coefficient - Harvey likes 90% of rating - what is standard?
• Consider startup

Questions:

• Kim: who will engineer it? Design coupling modification
• What is implied by the capacity rating? What is the baked-in factor of safety?
• Is the model of the pump the same as its sisters?
• Who is the manufacturer?

Concern:

• wobble , vibration, at lower speed

Marching orders:

• spec a torque for a mechanical fuse (~Harvey's guess: 90% of spec) that is not too big -