What is the four link mechanism of hydraulic support?
2. The connecting rod must have sufficient fatigue strength and structural rigidity. The lack of fatigue strength often results in fracture of the connecting rod or connecting rod bolt, thus causing a serious accident of the whole machine. If the stiffness is not enough, it will cause the bending deformation of the rod and the deformation of the big part of the connecting rod, resulting in partial wear of the piston, cylinder, bearing and crank pin.
Four link mechanism is an important part of hydraulic support, including: connecting rod, rear connecting rod, shield beam and base.1. The connecting rod group consists of the connecting rod body, the connecting rod big head cover, the connecting rod small head bushing, the connecting rod big head bearing bush and the connecting rod bolt (or screw). The connecting rod group bears the force acting on the piston pin and its swing and the reciprocating inertia force of the piston group, and the magnitude and direction of these forces are periodically changed. Therefore, the connecting rod is subjected to alternating load such as compression and tension.
The four link mechanism is an important part of the hydraulic support, including: connecting rod, rear connecting rod, shield beam and base. The design of the four link determines the trajectory of the top beam, the force of the connecting rod and the shield beam also determines the size and size of the overall size of the support.
