Introduction to the composition of connecting rod structure of portable folding table

- Apr 20, 2020-

The outdoor folding table wholesaler said that now the connecting rod structure of the outdoor portable folding table is its more important part, and the composition of this connecting rod mainly includes the following parts:

The connecting rod body is composed of three parts. The part connected with the piston pin is called the small end of the connecting rod; the part connected with the crankshaft is called the big end of the connecting rod, and the part connecting the small head and the big end is called the connecting rod body. Moreover, the connecting rod is connected to the cylindrical surface of the fixing member through a fixed folding assembly, which includes a rotating member, a connecting cap, a positioning spring, and a limiting member. The rotating member is provided with a shaft hole, the cylindrical surface of the fixing member is provided with a fixing hole, and the rotating member is sleeved on the cylindrical surface of the fixing member through its shaft hole.

The connecting rod is sequentially covered with a connecting cap and a positioning spring, a limiter is provided at the end and extends into the through-hole of the rotating member and the fixing hole of the cylindrical surface of the fixing member, and the connecting cap and the connecting column of the rotating member are cooperatively connected.

And it should be noted that the connecting rod shaft is a long rod, and the stress is also greater in the work. In order to prevent its bending deformation, the shaft needs to have sufficient rigidity. For this reason, most of the connecting rod shafts of vehicle engines adopt I-shaped cross-sections. I-shaped cross-sections can make the mass smaller when the stiffness and strength are sufficient. High-strength engines have H-shaped cross-sections. Some engines use connecting rod small-head injection engine oil to cool the piston, and a through-hole must be drilled in the longitudinal direction of the shaft. In order to avoid the concentration of stress, the connection between the connecting rod shaft and the small head and the big head adopts a large arc smooth transition.