There are several types of four-column hydraulic cylinder oil seals and what are their functions?

Double action press machine,The oil seal is an important part of the four-column hydraulic cylinder. It plays a role in preventing dust from entering the cylinder and sealing in parallel to prevent internal and external leakage. There are several types of oil seals in the cylinder and cannot be mixed. They each have different functions. In order to help you understand and distinguish These cylinders, let’s introduce in detail the types of four-column hydraulic cylinder oil seals, and what are their respective functions?

In general, the four-column hydraulic cylinder oil seal is divided into: dust seal, piston rod oil seal, support ring, guide belt, piston seal, static seal, etc., and their respective functions are:

1. double action press machine,Dust seal: installed inside the cylinder end cover, the main sealing lip is exposed to the air, and the sealing medium is dust, sand, rain, frost and other dirt to prevent external dust and rain from entering the inside of the sealing mechanism to protect the hydraulic pressure The role of oil and piston rod

2. Piston rod oil seal: Installed in the dust-proof seal in the cylinder end cover to prevent hydraulic oil from leaking. It bears greater pressure and is in direct contact with the hydraulic oil. It requires good static pressure retention performance, high dynamic pressure bearing, and sealing performance. Good, small friction coefficient, large friction coefficient

3. Support ring: Installed in the cylinder end cover, the main function is to support the piston rod and prevent the non-vertical force of the piston rod on the rod seal from causing poor sealing effect and service life

Short life

4. double action press machine,Guide sleeve: Installed on the piston rod, the main function is to guide the piston to move in a straight line, prevent the piston from internal leakage due to uneven force, and reduce the service life of the seal.

5. Piston seal: It is installed on the piston rod to prevent hydraulic oil from leaking between the sealed piston and the cylinder. The piston seal is the main seal in the hydraulic cylinder. It bears pressure in two directions and is the main requirement for piston seal It has good sealing effect, good static pressure holding effect, strong pressure bearing capacity during exercise, anti-extrusion, small friction coefficient, and long life:

6. Static seal: The static seal of the end cover is installed between the outer ring of the end cover and the inner wall of the cylinder to prevent hydraulic oil from leaking from the gap between the end cover and the cylinder barrel.

double action press machine,The above is the summary of the editor about the types and specific functions of the common oil seals of the four-column hydraulic cylinder. Generally, these types of oil seals are purchased as a set and belong to the national standard products. They play a vital role in the performance and pressure of the cylinder.

Related Q&A

Q: What tools are needed for hydraulic press installation?

Answer: Generally, it is a variety of wrenches, screwdrivers, pliers, etc. These tools are provided by manufacturers for easy installation, because these tools are not available in some places.

Question: I don’t know why the main oil tank is always leaking, can the manufacturer send someone to check it?

Answer: You first check whether it is caused by the strain on the piston rod. If it is not, it may be caused by the aging or wear of the cylinder seal, which requires a professional to replace it.

Q: What are the specific reasons for the insufficient pressure of the fully automatic hydraulic press?

Answer: 1. Although the pump can discharge oil, its efficiency is too low or the leakage is too large. The pressure of the pump itself is discharged from the oil, and its pressure is not enough to maintain the normal operation of the system; 2. The overflow valve is damaged or blocked, causing the original There is a normal pressure supply. Hydraulic pump, leaking or not here

Question: What cooling method is used for the four-column hydraulic press, and what is the cooling effect?

Answer: Generally, the method of water cooling is used, the cost is relatively low, and the effect is good.