The hydraulic cylinder barrel is the main body of the hydraulic cylinder, it is also known as honed tubing. and its inner hole is generally manufactured by precision machining processes such as boring, reaming, rolling or honing, so that the piston and its seals and supports can slide smoothly, thereby ensuring the sealing effect and reducing wear and tear. The cylinder bore is subject to great hydraulic pressure, therefore, it should have sufficient strength and rigidity. So what factors will affect the use of the hydraulic cylinder barrels?
The air enters into the hydraulic cylinder barrel
Compression or expansion of air in a hydraulic cylinder can cause the piston to slip or crawl. The exclusion measures are to check the hydraulic pump, set up a special exhaust device or quickly operate the full stroke to exhaust several times.
The interior of the hydraulic cylinder is stagnant
Most of the reasons are due to poor damage on the surface of parts or iron filings produced by sintering during assembly, which makes the resistance increase and the speed decrease. The solution is to readjust, replace damaged parts and remove iron filings.
Poor lubrication or the bore diameter of the hydraulic cylinder exceeds the allowable tolerance
Because the piston and the cylinder, the guide sleeve and the piston rod have relative motion. If the lubrication is poor, the inner wall of the hydraulic cylinder is dry. Or the diameter of the hydraulic cylinder exceeds the allowable tolerance, the wear will be aggravated, and the linearity of the center line of the hydraulic cylinder will be reduced. In this way, when the piston works in the hydraulic cylinder, the frictional resistance will sometimes be large and sometimes small, resulting in crawling or slippage. The elimination method is to grind the inner wall of the hydraulic cylinder first, then prepare the piston according to the requirements, grind the piston rod, and configure the guide sleeve.
The quality of the seals causes crawling or slipping
Compared with the u-shaped sealing ring, the o-shaped sealing ring is prone to creep or slip due to the high cross-sectional pressure and the large difference between the dynamic and static frictional resistance when it is used under low pressure. The section pressure of the u-shaped seal increases with the increase of the pressure. Although the sealing effect also increases accordingly, the gap between the dynamic and static friction resistance also increases. The increase in the internal pressure of the cylinder affects the elasticity of the rubber. Due to the contact resistance of the seal lip The increase will overturn and elongate the lip, and it is also easy to cause crawling or slippage. In order to prevent the seal from tipping over, a support ring can be used to reinforce it.
Our factory is one of the high quality Hydraulic cylinder honed tube suppliers in China. We manufacture and supply full range of metric size and imperial sizes of hydraulic cylinder honed tubes (hydraulic cylinder barrel), with various materials upon customers requirements. Customers who want to buy honed tubes/ hydraulic cylinder barrels, please feel free to contact us.
Besides hydraulic cylinder barrel, we also produce below products and materials for hydraulic cylinder applications.
Our products are widely used for hydraulic cylinder manufacturing and repairing. Our factory is professional in the filed of hydraulic cylinders and penumatic cylinders.
