Shanghai jaw crusher spring jaw crusher tie rod jaw crusher jaw plate accessories

During the idling process of the jaw crusher, the spring pull rod will separate the movable jaw and the toggle plate due to the inertial force of the movable jaw and the inertial force couple, thereby destroying the normal operation of the machine. In order to prevent this phenomenon from happening, a pull rod spring device is provided at the lower end of the movable jaw to ensure a tight fit between the movable jaw and the toggle plate. According to the previous analysis of the kinematics and dynamics of the jaw crusher, the inertia force and inertia moment of each point on the trajectory of the can pulling and movable jaw can be found, and then the maximum compression force of the spring can be calculated. In the situation shown in the picture, the toggle plate can only bear pressure but not tension. When the tie rod spring is in a compressed state, that is, at each position where the inertial dynamic load separates the movable jaw and the toggle plate, the maximum value is taken as the basis for calculating the spring. Although the discussion talks about the maximum value as the basis for calculating the spring,. In order not to make the selected spring stiffness too large, the number of working turns of the spring should be greater than the number of turns.