Torque test device of electric actuator
AssigneeKorea Aerospace Research Institute
InventorJung Jin Lee
Life of this patent
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Abstract
The provided device is a torque testing tool for electric actuators, employing a potentiometer, load cell, and spring system to measure torque. It surpasses conventional leaf springs with its wider operational rotation range. The setup includes a potentiometer fixed at the electric actuator's shaft end, a vertically positioned torque arm, a rod connected to the torque arm with a load cell, and a spring system attached to the rod and a second bracket, all vertically aligned with the actuator's shaft. A control unit processes force data from the load cell and rotation angle data from the potentiometer to accurately calculate the electric actuator's torque. This innovative design ensures precise torque measurement, offering enhanced efficiency and versatility for various applications relying on electric actuators.
Claims9
A torque test device of an electric actuator, the device comprising:
- a potentiometer having one end fixed by a first bracket, and disposed at an end of a shaft of the electric actuator;
- a torque arm of the electric actuator that is disposed vertically to the shaft of the electric actuator;
- a rod coupled to the torque arm of the electric actuator, and installed with a load cell;
- a spring system having one end coupled to the rod and the other end coupled to a second bracket, and disposed vertically to the shaft of the electric actuator;
- and
- a control unit calculating a torque of the electric actuator by receiving force data measured by the load cell and a rotation angle measured by the potentiometer.
A torque test device of an electric actuator, the device comprising:
- a potentiometer having one end fixed by a first bracket, and disposed at an end of a shaft of the electric actuator;
- a torque arm of the electric actuator that is disposed vertically to the shaft of the electric actuator;
- a rod coupled to the torque arm of the electric actuator, and installed with a load cell;
- a spring system having one end coupled to a third bracket and the other end coupled to a second bracket, and disposed vertically to the shaft of the electric actuator;
- and
- a control unit calculating a torque of the electric actuator by receiving force data measured by the load cell and a rotation angle measured by the potentiometer.
A torque test device of an electric actuator, the device comprising:
- a potentiometer having one end fixed by a first bracket, and disposed at an end of a shaft of the electric actuator;
- a torque arm of the electric actuator that is disposed vertically to the shaft of the electric actuator;
- a linkage coupled to the torque arm of the electric actuator, and including a plurality of links coupled thereto;
- a rod coupled to the linkage, and installed with a load cell;
- a spring system having one end coupled to the rod and the other end coupled to a second bracket, and disposed vertically to the shaft of the electric actuator;
- and
- a control unit calculating a torque of the electric actuator and rigidity of the designed linkage by receiving displacement of the spring system and a force measured by the load cell.
Dependencies are inferred from the claim text.