Hydraulic lifting platform two post lift hydraulic cylinder, forward lift hydraulic cylinders, the input is the flow and pressure of the liquid, and the output is the pulling force (pressure) and linear speed. the hydraulic lifting platform hydraulic cylinder has a simple structure and good working reliability, and is widely used in construction machinery and many fields.
Causes and solutions of hydraulic lift cylinder failure of platform
1. Internal stagnation of the hydraulic lift cylinder: improper assembly of internal parts of the hydraulic cylinder, deformation of parts, wear, or excessive tolerance of shape and position, excessive resistance to action, causing the piston speed of the hydraulic cylinder to change with the position of the stroke, slipping or crawling . The reason is mostly due to poor assembly quality of parts, scratches on the surface or iron filings from sintering, which increases resistance and decreases speed.
2. Poor lubrication or excessive machining of the bore of the two post lift hydraulic cylinder: Because the piston and the cylinder barrel, the guide rail and the piston rod all have relative motion, if the lubrication is poor or the bore of the hydraulic cylinder is excessively poor, it will aggravate the wear and make the center line of the cylinder linear reduce. In this way, when the piston works in the hydraulic lift cylinder, the frictional resistance will be large and small, causing slippage or crawling. The exclusion method is to first grind the hydraulic cylinder, then prepare the piston according to the matching requirements, grind the piston rod, and configure the guide sleeve.
3. Air in the hydraulic pump or hydraulic lift cylinder: air compression or expansion will cause the piston to slip or crawl. The exclusion measure is to check the hydraulic pump, set up a special exhaust device, and quickly operate the full stroke to exhaust several times.
4. The quality of the seal has a direct relationship with slip or crawling: when the O-ring is used under low pressure, compared with the U-ring, because of the higher surface pressure and the larger difference between dynamic and static friction resistance, slip or Crawling; the surface pressure of the U-shaped sealing ring increases with the increase of pressure. Although the sealing effect also increases, the difference between dynamic and static friction resistance also increases. The internal pressure increases, affecting the rubber elasticity. Due to the increased contact resistance of the lip If the seal ring is large, the sealing ring will tip over and the lips extend, which may also cause slippage or crawling. To prevent it from tipping over, a support ring can be used to keep it stable.
Product Process
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FAQ
France customers consulted with us about forward lift hydraulic cylinders, two post lift hydraulic cylinder.
Q: How to store hydraulic cylinders
A: After cleaning the hydraulic cylinder with diesel or kerosene, apply the lubricating oil and wrap it with oil paper. It is best to put it in a wooden box and store it in a dry and non-corrosive environment.
Q: How to choose the hydraulic cylinder working BAR ?
A: This is base on your valve to control the hydraulic cylinder working pressure, if you have set the protection pressure,when the pressure reach your set value,automatic start protection.
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