Discussion Overview
The discussion revolves around calculating the torque required for an electrical scissors jack designed to lift a load of 100 kg. Participants explore the necessary considerations for selecting an appropriate electric motor based on torque calculations.
Discussion Character
- Technical explanation
- Exploratory
Main Points Raised
- One participant inquires about the method to calculate the torque needed for lifting a 100 kg load with an electric scissors jack.
- Another participant asks for clarification on whether the mechanism is hydraulic or jack-screw, indicating the importance of the type of jack in the calculations.
- A later reply specifies that the jack is a scissors jack and suggests starting with an assumption of zero friction in the screw mechanism.
- Participants discuss the importance of selecting a typical screw pitch used in normal scissors jacks and determining the gear ratio based on the screw pitch and its effect on the scissors' movement.
- There is a recommendation to calculate the zero-friction torque first and then incorporate friction effects, assuming lubrication on the screw, to find the total required torque.
- It is mentioned that the electric motor should likely have a gearbox output to assist in the torque application.
Areas of Agreement / Disagreement
Participants have not reached a consensus on the specific calculations or methods for determining the torque, and multiple approaches and considerations are presented.
Contextual Notes
Assumptions about friction, screw pitch, and gear ratios are discussed, but the specific values and their implications remain unresolved.