The blister-shaped re-drag reset operation process pushes the operating handle by external force to rotate the jumper component into the locking position and is locked. The five-bar linkage mechanism is changed into a four-bar linkage mechanism to perform the closing operation. Pass circuit.

In this process, whether the design of the handle torque is reasonable has an important influence on the operating performance. For example, the steep rise in the slope or the discontinuous torque characteristics may cause excessive stress concentration on the components and affect the mechanical life. It may also cause difficulties in the drive design of the electric operating mechanism and reduce the transmission efficiency of the electric operating mechanism and the motor inrush current. Too large and so on, the design of the handle torque of the re-buckling process should be as smooth as possible, and avoid abrupt changes in the slope. In order to obtain a reasonable hand-operated re-clamping operating torque, first, a description of the relationship between the structural parameters and the torque characteristics needs to be established. Since the components involved in the drive chain of the re-buckling process are more complex, it is often difficult to pass simple movements. Learn to obtain the operating torque characteristics of the re-buckling process. For a long time, the predecessors used the multi-body dynamic simulation software ^mams to do the biggest research work in the dynamic simulation and optimization of the MCCB operating mechanism.

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