Release time：2023-11-23 08:22:47 Hits： Current position: Home > News
This article mainly introduces:
Bangladesh hydraulic cylinder,servo hydraulic cylinder manufacturer,servo hydraulic cylinder
(Bangladesh servo hydraulic cylinder,produced by Hengyu Hydraulic Cylinder Factory）
servo hydraulic cylinder are widely used in Bangladesh，because of no need for deceleration device，long service life，smooth movement.So our company has designed servo hydraulic cylinder for customers from Bangladesh.
The definition of the minimum starting pressure of the servo hydraulic cylinder refers to the minimum working pressure of the servo hydraulic cylinder in the no-load state, which is a comprehensive index reflecting the manufacturing and assembly accuracy of the servo hydraulic cylinder parts and the size of the sealing friction.
If the servo hydraulic cylinder slips or crawls, please check whether there is astringency inside the servo hydraulic cylinder, because the internal parts of the servo hydraulic cylinder are improperly assembled, the parts are deformed, worn or the shape and position tolerance is excessive, the action resistance is too large, so that the piston speed of the servo hydraulic cylinder changes with the different stroke position, and the slip or crawl occurs. Most of the reasons are due to poor assembly quality of parts, surface scars or sintered iron filings, so that the resistance increases, the speed decreases. For example, the piston is different from the piston rod or the piston rod is bent, the servo hydraulic cylinder or the piston rod is offset from the mounting position of the guide rail, and the sealing ring is too tight or too loose. The solution is to repair or adjust, replace damaged parts and remove iron filings.
The viscosity of the working oil used in the servo hydraulic cylinder is 29~74mm2/S, and ISO VG46 anti-wear hydraulic oil is recommended. Working oil temperature within the range of -20~80. C. When the ambient temperature and service temperature are low, the oil with lower viscosity can be selected.
The advantages and disadvantages of the servo hydraulic cylinder: the surface of the servo hydraulic cylinder by painting, coating protection treatment, bright luster is not easy to rust, all raw materials of the servo hydraulic cylinder through the top heat treatment, high manufacturing precision, belongs to the precision machinery, has a simple structure, stable quality, high mechanical efficiency, easy to achieve automation and many other advantages. However, hydraulic technology also has the shortcomings of oil leakage, oil temperature change affecting the control of running speed, noise, expensive cost and high maintenance cost.
When the cylinder is tested, why can't the pressure be maintained with the balance valve?
Because the oil into the oil chamber through the hydraulic lock on the control oil circuit through the other side of the spool, the original valve is designed in this way. It locks the circuit after the oil supply circuit loses pressure, on the contrary, if you keep supplying pressure, it is always in the state of opening the other side of the one-way spool. So this valve can't be used in the test.
How to calculate hydraulic cylinder thrust?
Cylinder diameter = piston diameter =200MM Piston area =π (200/2) square =3140 square mm =31.4 square cm 25MPA=250KG/ square cm Maximum thrust = pressure * Piston area =250 *31.4 =7850KG=78500 Newtons This is the maximum thrust. The formula can be derived from the calculation formula.
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