The main cylinder of a hydraulic press is the primary operating component of a hydraulic press. The function of the main cylinder of a hydraulic press directly affects the overall technological level of the hydraulic press. Through detailed analysis and theoretical research to solve the problems in the vulnerable part of the planning structure, the hydraulic cylinder can meet the process strength requirements as a whole, and the process level and service life of the hydraulic cylinder can be improved. Therefore, detailed and careful planning and accounting of the main cylinder of the hydraulic press has a vital effect on the planning and production of the hydraulic press.
When the slider of the main cylinder of the hydraulic press is fast forwarded, the speed is relatively fast under the effect of its own weight, and the output oil volume of the hydraulic pump at this time cannot meet the rapid descending of the slider. The load of the main cylinder of the hydraulic machine is very small during fast forwarding. As long as the conflicting load between the piston and the cylinder, the guide post and the slider, the outlet pressure of the pump is also very small, and the power consumption will not be large. When the piston rod of the hydraulic press is fully extended, the interval from the midpoint of the piston bearing surface to the midpoint of the cylinder head sliding bearing surface is called the minimum guide length, which is represented by H. If the guide length is too small, the initial deflection of the hydraulic cylinder will increase due to the deflection caused by the gap, which will affect the stable operation of the hydraulic cylinder.
