As we all know, the piston rod is widely used in our daily cylinders, fuel tanks, hydraulic cylinders and other moving parts in execution, a connecting member to support the piston to do work, it can play a major role in the transmission of a force. The use of the piston rod in the cylinder, we are all the requirements for its length, otherwise excessive use of the product will affect the piston rod, the piston rod is too short will cause the limited physical structure, to withstand a large proportion of radial force, so the length of the hydraulic cylinder piston rod must be moderate. So how should we calculate the length of the hydraulic cylinder piston rod it?
Calculation main hydraulic cylinder piston rod length:
In general, the general length of the hydraulic cylinder piston rod is mainly taken 0.7-1.0 times the outer diameter of the piston rod, the length of the piston rod may serve to increase the surface area of the support, the guiding role increased, will reduce the wear rate, to improve the the useful life of the hydraulic cylinder used.
The main hydraulic cylinder piston rod diameter according to the size of the forces to determine its internal bore and the outer diameter of the sealing groove have to control concentricity tolerances in the range of 0.02mm. In addition, as we generally require end face of the hydraulic cylinder. hydraulic cylinder axis vertical tolerance is less than 0.04mm / 100mm, so the error outer diameter of the piston bore roundness, cylindricity error, etc., can not be greater than half its size tolerances.
The quality of the hydraulic cylinder piston rod, can be determined to a large extent the good or bad quality of the hydraulic cylinder, the piston rod so our machining precision is extremely high. So the length of the cylinder rod after the preliminary determination, we also need to follow its speed requirements for verification. If it can be determined accurately set to meet the power and speed of these two requirements before.
