Pull rod joint design method

[0051] Example 1 as Figures 5 to 7 As shown: when the stiffness K of the tie rod node is less than or equal to the maximum stiffness Km of the rubber layer, the tie rod node adopts the linear stiffness design scheme of Embodiment 1. The tie rod node includes: a cylindrical mandrel 1, a circular rubber layer 2 and a circular outer jacket 3, the rubber layer 2 is pressed into the space between the mandrel 1 and the outer jacket 3 through a press-fitting device, or it can be vulcanized It is connected with the mandrel 1 and the jacket 3 as a whole.

[0052] Then the overcoat 3 can also be radially compressed by the pressing equipment, and then the rubber layer 2 can be compressed by compressing the overcoat 3 to increase the density of the rubber layer 2, thereby increasing the stiffness K1 of the rubber layer 2, so as to improve the rubber layer 2. Carrying capacity.

[0053] Example 2 as Figures 8 to 10 As shown: when the stiffness K of the tie rod node is less than or equal to the maximum stiffness Km of the rubber layer, the tie rod node can also adopt the linear stiffness design scheme of Embodiment 2. The tie rod node includes: a cylindrical mandrel 1 , an arc-shaped rubber layer 2 and an annular casing 3 , and a cavity 6 along the axial direction of the tie rod node is also provided between the mandrel 1 and the outer casing 3 . The rubber layer 2 is arranged between the mandrel 1 and the casing 3 by pressing or vulcanizing.

[0054] The difference from Example 1 is that in Example 2, the rubber layer 2 does not fill the annular space between the mandrel 1 and the jacket 3 , and an axial cavity 6 is provided between the mandrel 1 and the jacket 3 . The tie-rod nodes have greater rigidity in the direction where the rubber layer 2 is arranged, and the tie-rod nodes have smaller stiffness in the direction where the cavity 6 is arranged....

[0055] Example 3 as Figures 11 to 13 As shown: when the stiffness K of the tie rod node is greater than the maximum stiffness Km of the rubber layer, the tie rod node adopts the non-linear variable stiffness design scheme of Embodiment 3.

[0056] The tie rod node with variable stiffness design includes: a mandrel 1, a rubber layer 2, an outer jacket 3 and an inner stopper 4. The rubber layer 2 is pressed into the space between the mandrel 1 and the outer jacket 3 through a press-fitting device, or it can be vulcanized The method is connected with the mandrel 1 and the overcoat 3 as a whole. Then the overcoat 3 can also be radially compressed by the pressing equipment, and then the rubber layer 2 can be compressed by compressing the overcoat 3 to increase the density of the rubber layer 2, thereby increasing the stiffness K1 of the rubber layer 2, so as to improve the rubber layer 2. Carrying capacity.

[0057] The rubber layer 2 is provided with a cavity 6 along the axial ...