Working principle of hydraulic wrench
The working principle of the hydraulic wrench is to analyze from his main body. We can divide the hydraulic wrench into three parts. It is mainly composed of three parts: the frame and the oil cylinder and transmission parts. For the cylinder, its main function is the output force. When the piston rod and the transmission part of the cylinder together form the movement pair, the center of the cylinder, from this to the center of the transmission part, is mainly to enlarge the hydraulic wrench. The role of the arm, then we multiply the cylinder output and then multiply the force arm. The result is the theoretical output of the hydraulic wrench, but because of the frictional resistance, the output of the actual hydraulic wrench is less than the theoretical output. Torque.