Torque output device based on force sensor feedback

Abstract

The invention belongs to the field of rehabilitation medical treatment and sports fitness equipment; the existing force applicator torque sensor has a large volume and a complex structure, which is inconvenient to be integrated into a muscle strength training device, and a coupling is required to connect with the output shaft of a motor, which affects the accuracy of mechanical installation. There are higher requirements, and the present invention provides a torque output device based on force sensor feedback, which is installed on the frame through a fixed plate, and the output arm is subjected to external load torque, and the upper cylinder of the special-shaped mounting flange will be squeezed or stretched. The block is transmitted to the force sensor through the pressure block, and the value of the external load torque M can be measured according to the principle of torque balance. The controller controls the motor to output the appropriate torque and speed, simplifies the structure of the output arm, and reduces the axial force of the force applicator. Size, and the detection device is far away from the load end, reducing interference and more accurate detection results.

Description

technical field [0001] The invention belongs to the fields of rehabilitation medicine and sports fitness equipment, and more specifically relates to a torque output device based on force sensor feedback. Background technique [0002] Accurate measurement of muscle strength and scientific training are very important to the training and rehabilitation of muscles and motor nerves. As a tool for measuring and training muscle strength, force applicators are widely used in the field of medical rehabilitation and sports fitness. However, the existing force The torque sensor is generally used to detect the load torque. The torque sensor is large in size. The use of the torque sensor results in a large axial size of the force applicator and a complex structure. It is not convenient to integrate into the muscle strength trainer. It needs a coupling to connect with the output shaft of the motor. device, and has high requirements for mechanical installation accuracy. The output force a...

AI Technical Summary

Problems solved by technology

[0002] Accurate measurement of muscle strength and scientific training are very important to the training and rehabilitation of muscles and motor nerves. As a tool for measuring and training muscle strength, force applicators are widely used in the fields of medical rehabilitation and sports fitness. However, the existing force The torque sensor is generally used to detect the load torque. The torque sensor is large in size. The use of the torque sensor results in a large axial size of the force applicator and a complex structure. It is not convenient to integrate into the muscle strength trainer. It needs a coupling to connect with the output shaft of the motor. devices, and have high requirements for mechanical installation accuracy

The output force arm of the force applicator also needs structures such as precision brushes and conductive slip rings that match the torque sensor, which is complex and inconvenient to install or replace

Images