1、 Hydraulic cylinder makes small equipment become Hercules
2、 How to maintain the hydraulic cylinder
Have you heard of jack? How can such an inconspicuous little thing easily lift a car? It has never happened in movies and novels. However, it does happen in real life. What force makes a small jack lift a car
1、 & nbsp; Hydraulic cylinder makes small equipment become Hercules
In fact, this is all due to the hydraulic system. It is by virtue of the hydraulic system that we can lift a few tons of trucks and load a dozen tons of boulders from thousands of miles away. It is the hydraulic system that makes this seemingly impossible possible
To understand the hydraulic cylinder, you need to understand the hydraulic system. The hydraulic system is simply composed of hydraulic pump and other actuating elements. The hydraulic cylinder is one of the most important components in the whole hydraulic system
How the hydraulic cylinder can make the force bigger, let's take the jack as an example
If we use a jack to lift a car, then first we need to push the hydraulic oil in the manual pump into the hydraulic cylinder. This process can be easily achieved through the lever handle. Because of the protection of one-way valve, the hydraulic oil will not flow back due to loosening. When the hydraulic oil flows into the hydraulic cylinder more and more. Then it will push the piston to move upward. At this time, as a load, the car will also lift gradually because of the upward force
In this process, the bottom area of the hydraulic cylinder must be much larger than the bottom area of the piston cylinder, because the pressure of the liquid in the closed container is equal everywhere. In the same system, the smaller the pressure area is, the greater the pressure will be, which is the fundamental reason why the small equipment becomes a Hercules
In other words, this is the soul of all kinds of hydraulic systems. The simplest working mode of hydraulic cylinders will never change no matter how the hydraulic system changes
2、 & nbsp; How to maintain the hydraulic cylinder
Because the hydraulic cylinder has to bear a lot of pressure, the heavier the load, the greater the pressure will be. Therefore, the maintenance of the hydraulic cylinder is the most important part of the maintenance of the entire hydraulic system
The hydraulic cylinder is equivalent to the heart of the hydraulic system. It is difficult to repair the heart problem, so the maintenance of the hydraulic cylinder should be careful
First of all, we should prevent rust. Because the piston part of the hydraulic cylinder will extend out of the cylinder in the working state, it will naturally be eroded by oxides and acid gases, which requires us to coat it with appropriate amount of grease to protect it, so as to prevent the piston as a load-bearing component from being eroded and may break in the work
Secondly, open the case and change the oil. Because of long-term use, it is inevitable that foreign matters will enter the hydraulic cylinder, which will increase friction during use. In addition, the hydraulic oil also has a certain service life. If the oil is not changed for a long time, it will damage or erode the inside of the hydraulic cylinder
Prevention is better than cure. Therefore, the speed should be controlled properly during the operation of the hydraulic cylinder, not exceeding 2m/s, which can extend the service life of the hydraulic cylinder. In addition, for the sake of protecting the mechanism and safety, the internal installation of buffer device is very effective for the protection of the hydraulic cylinder
