Infour-column hydraulic pressDuring the working process, the operating environment of the hydraulic system is high-speed and high-pressure, so the load of the hydraulic cylinder is very large, which leads to the elastic or elastic-plastic expansion or deformation of the inner diameter of the cylinder. Then why the hydraulic cylinder expands, let's learn together.
First of all, this has something to do with the hydraulic cylinder itself of the four-column hydraulic press. The slender cylinder barrel of the hydraulic cylinder is prone to expansion. Since the strength and rigidity are distributed in a parabolic state, the expansion is mostly near the middle point of the high working pressure chamber of the four-column hydraulic press and is proportional to the working oil distribution pressure. Xiaobian suggests that hydraulic press manufacturers should pay attention to calibrating the strength and rigidity of the hydraulic cylinder when designing the hydraulic cylinder;
Secondly, it is the material of the hydraulic cylinder of the four-column hydraulic press and whether the structural design is reasonable. The material is the essence. If the material is inferior or the strength is low, it is conceivable that the safety performance cannot be guaranteed. Once the four-column hydraulic press is used for a long time, the cylinder diameter of the hydraulic cylinder will swell, and no reinforcing hoop will be installed in the middle.
The correct operation of the four-column hydraulic press is a safe prerequisite. At high speed or heavy load, the piston inertia of the hydraulic press is relatively large and stops working instantly. The pressure in the cavity will increase sharply and exceed the higher working pressure, resulting in the expansion of the hydraulic cylinder. There are also very dangerous situations in which the four-column hydraulic press is not operated according to the regulations, often works under load, the hydraulic cylinder buffer device fails to be in an open state, and the piston cannot decelerate and hits the cylinder head, causing overpressure, everyone must pay more attention.
The editor still wants to remind everyone that it is necessary to strengthen the cylinder wall of the hydraulic cylinder of the four-column hydraulic press. If deformation is found, reinforcement measures should be taken in time, or the inner wall should be repaired such as grinding. It must not be left unchecked, otherwise it will cause safety accidents. The loss outweighs the gain.