Method of changing crank-rocker mechanism

The way to change the crank rocker mechanism is to change the length of the crank. Crank-rocker is a spatial crank-rocker mechanism that can accurately adjust the swing angle and direction, including a frame, a drive assembly, a connecting rod assembly and a swing assembly. The drive assembly includes a crank drive shaft, a crank and crank connecting rod connecting shaft, a connecting rod universal joint assembly, a connecting assembly, a rivet and a connecting rod adjusting assembly.

Composition of rotary assembly

The rocking assembly comprises a threaded rocker, a scale nut, a positioning screw, a rocker locking nut and a rocker sliding sleeve, and a crank transmission shaft is installed on the frame and inserted into the crank; The crank is connected with the universal joint assembly through a crank connecting rod connecting shaft, and then connected with the connecting rod assembly; The connecting rod assembly is connected with the threaded connecting rod through the universal joint assembly, and then connected with the swinging assembly; The bearing of the swing part is installed on the frame.

This new crank-rocker mechanism has the advantages of simple structure, convenient adjustment, high precision and strong adaptability, and can freely and accurately adjust the swing angle and direction as required. At present, the swing structure is mainly used for searchlights, fans, dampers, mixers and angular conveying devices. In some precision transmission fields, the swing mechanism is mainly used for radar antenna, automobile steering, periodic swing angle and other devices.