The general lever
system with the adjustable
gravity center comprises a lever, the center of the lever in the
axial length direction is provided with a
resultant force loading area, and the lever is sequentially provided with a component force loading area and a
gravity center adjusting area from the center to the two sides in the
axial length direction; the
resultant force loading area comprises a plurality of
resultant force bolt groups which are distributed at intervals along the
axial length direction of the lever; the component force loading area comprises a component force bolt group which is adjustably arranged along the axial length of the lever; the
gravity center adjusting area comprises at least two gravity center adjusting assemblies which are arranged along the axial length of the lever in an adjustable mode. The lever ratio can be adjusted, and when the
resultant force acting point of the lever is located in the middle bolt hole, balance weight and gravity center adjustment do not need to be considered; when the
resultant force acting point of the lever is not in the center, the gravity center can be adjusted to the force center through the counterweight
system; the gravity center adjusting device can be matched with different balancing weights according to different positions, and meanwhile the gravity center can be adjusted more accurately by adjusting the positions of the balancing weights.