Variable stiffness module and modular flexible variable stiffness driving mechanism

• Main Authors: LU SHENG, LI SUJIAO, HU BINGSHAN, CHENG KE, YU HONGLIU, MENG QIAOLING
• Format: Patent
• Language: Chinese; English
• Published: 04.06.2021
• Subjects: ARTIFICIAL RESPIRATION; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSESOR SPECIFIC PARTS OF THE BODY; CHAMBERS PROVIDED WITH MANIPULATION DEVICES; HAND TOOLS; HUMAN NECESSITIES; HYGIENE; MANIPULATORS; MASSAGE; MEDICAL OR VETERINARY SCIENCE; PERFORMING OPERATIONS; PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING ORSTIMULATING REFLEX POINTS IN THE BODY; PORTABLE POWER-DRIVEN TOOLS; TRANSPORTING

The invention relates to a variable stiffness module and a modular flexible variable stiffness driving mechanism. In the variable stiffness module, a base is rotatably connected with a cam; a flat head shaft is rotated with an output shaft of a stiffness motor; a stiffness adjusting structure comprises a T-type lead screw, a spring compression block, a guide supporting frame, a spring structure, a connecting block and a cam follower, and the T-type lead screw is rotated with the flat head shaft; the spring compression block is in bolted connection with the T-type lead screw, and is slide along the guide supporting frame, and the spring structure is connected with the spring compression block and the connecting block; the cam follower is installed on the connecting block; and the inner contour wall of the cam is meshed with the cam follower, and the outer contour wall of the cam is connected with an external load. Compared with the prior art, in the variable stiffness module, the output shaft of the stiffness