Release time：2023-11-26 09:50:05 Hits： Current position: Home > News
This article mainly introduces:
Ethiopia hydraulic cylinder,plating press hydraulic cylinder manufacturer,plating press hydraulic cylinder
(Ethiopia plating press hydraulic cylinder,produced by Hebei Hengyu company）
plating press hydraulic cylinder are widely used in Ethiopia，because of powerful torque，clever hydraulic energy conversion，simple structure and reliable operation.So our company has designed plating press hydraulic cylinder for customers from Ethiopia.
When installing the plating press hydraulic cylinder, the axial ends of the plating press hydraulic cylinder cannot be fixed. Due to the effect of liquid pressure and thermal expansion in the plating press hydraulic cylinder, there is axial expansion. If the two ends of the plating press hydraulic cylinder are fixed, all parts of the plating press hydraulic cylinder will be deformed. When disassembling the plating press hydraulic cylinder, it is strictly forbidden to hammer the plating press hydraulic cylinder and the piston surface, such as the plating press hydraulic cylinder hole and the piston surface is damaged, do not allow sandpaper grinding, to use a fine oil stone carefully grinding. The clearance between the guide sleeve and the piston rod should meet the requirements.
Most of the failure of the plating press hydraulic cylinder is because there is a foreign body in the plating press hydraulic cylinder into the failure of the plating press hydraulic cylinder, the most problematic is that it is difficult to determine when the foreign body is into the plating press hydraulic cylinder. After a foreign body enters, if the outer side of the sliding surface of the piston is equipped with a seal with a lip edge, then the lip edge of the seal can scrape the foreign body when working, which is beneficial to avoid scratching. However, the piston equipped with 0-shaped sealing ring has a sliding surface at both ends, and foreign bodies are sandwiched between this sliding surface, which is easy to form scars.
If it is found that the plating press hydraulic cylinder lubrication is poor or the plating press hydraulic cylinder bore processing is abnormal, it is necessary to feedback the situation to the manufacturer, because the piston and the plating press hydraulic cylinder, the guide rail and the piston rod have relative movement, if the lubrication is poor or the plating press hydraulic cylinder bore is abnormal, it will aggravate the wear and reduce the straightness of the plating press hydraulic cylinder center line. In this way, when the piston works in the plating press hydraulic cylinder, the friction resistance will be large and small, resulting in slip or crawling. The solution is to repair and grind the plating press hydraulic cylinder first, and then prepare the piston according to the matching requirements, repair and grind the piston rod, and configure the guide sleeve.
When the plating press hydraulic cylinder thrust is insufficient, check the hydraulic circuit for leaks. Including leakage of valves and hydraulic lines. The inspection method is to check and eliminate the leakage of the hydraulic connection line by manipulating the reversing valve. Also consider the relief valve. If the relief valve enters the dirt and jams the spool, so that the relief valve is normally open, the hydraulic oil will flow directly back to the tank through the relief valve bypass, resulting in no oil in the plating press hydraulic cylinder. If the load is too large, although the regulating pressure of the relief valve has reached the maximum rating, the plating press hydraulic cylinder still cannot get the thrust required for continuous action without action. If the regulating pressure is low, the pressure is insufficient to achieve the required vertebra force, which is manifested as insufficient thrust. Check and adjust the relief valve at this time.
How to select the 2.5T bearing cylinder and hydraulic pump?
2,5 ton load is not heavy, you can use the rated pressure of 16 mpa gear pump, neither waste nor save cost, load/pressure = cylinder diameter, preset pressure of 8 mpa, 2500 (kg) /80 (bar) =31.25 square centimeters, in the open =63 mm, cylinder diameter can be selected 63 mm, stroke according to the situation, Hydraulic pump select gear pump, if there is a speed requirement, in order to calculate the displacement, the motor power also needs to determine the displacement of the pump to calculate.
Servo cylinder control principle
The electro-hydraulic pulse servo cylinder is composed of a stepper motor, a three-position four-way servo valve, a mechanical feedback device (a wire carrier) and an oil lever. When the stepper motor gets a pulse signal, its output shaft rotates 1.5 or 3 degrees, the servo valve spool drives the wire to rotate at the same time, the valve spool moves and opens the reversing cylinder to output pressure oil, the piston moves and drives the lead screw to reverse rotate the valve spool back to the original position, and the servo valve stops output pressure oil in the center. At this time, the cylinder moves 0.1 or 0.2mm stroke, and the displacement and speed of the cylinder travel are determined according to the given value of the electrical pulse.
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