Release time：2023-11-27 15:08:58 Hits： Current position: Home > News
This article mainly introduces:
Japan hydraulic cylinder,roller press hydraulic cylinder manufacturer,roller press hydraulic cylinder
(Japan roller press hydraulic cylinder,produced by Hengyu Hydraulic Cylinder Factory）
roller press hydraulic cylinder are widely used in Japan，because of smooth movement，high work efficiency，excellent fatigue and impact resistance.So our company has designed roller press hydraulic cylinder for customers from Japan.
The internal leakage of the roller press hydraulic cylinder is an important indicator to measure the quality of the roller press hydraulic cylinder: the internal leakage of the roller press hydraulic cylinder will reduce the volumetric efficiency, increase the temperature rise of the oil, affect the positioning accuracy of the roller press hydraulic cylinder, so that the roller press hydraulic cylinder can not accurately and stably stop in a certain position of the roller press hydraulic cylinder, so it is one of the main indicators of the roller press hydraulic cylinder.
The piston seal of the roller press hydraulic cylinder is the main element to prevent leakage in the roller press hydraulic cylinder. For the lip seal, it should focus on checking whether the lip edge is bruised and worn, and for the combination seal, it should focus on checking the wear of the sealing surface, and then determine whether the seal can be used. In addition, it is necessary to check whether the static seal between the piston and the piston rod is crushed. The piston rod seal should focus on checking the wear of the seals and supporting rings.
When the roller press hydraulic cylinder wear is serious, you can try to use an alloy scraper to shave grooves with a depth of more than 1mm on the surface of the slip injury, then clean the grooves with acetone, apply the adjusted TS311 anti-wear repair agent on the polished surface with the roller press hydraulic cylinder inner diameter copying plate, and scrape it flat vigorously to ensure compaction and higher than the inner surface of the roller press hydraulic cylinder. After curing, polish to leave a finishing margin. Finally, the overall size, shape tolerance and roughness of the roller press hydraulic cylinder can meet the requirements by grinding. However, the life and reliability of this repair roller press hydraulic cylinder are not high.
If the piston rod and roller press hydraulic cylinder are stuck or the roller press hydraulic cylinder is blocked, at this time, no matter how to operate, the roller press hydraulic cylinder does not move or has little action. At this time, check whether the piston and piston rod seal is too tight, whether it enters the dirt and gum deposits: whether the shaft line of the piston rod and the roller press hydraulic cylinder is in the center, whether the wearing parts and seals are invalid, and whether the load is too large.
How to disassemble the cylinder?
Generally speaking, it is not difficult to disassemble the hydraulic cylinder, as long as you are careful, but you often encounter some small trouble in the disassembly process, because the disassembly process is not correct. In fact, this can be avoided, as long as you follow below points. 1. Before removing the hydraulic cylinder, the hydraulic circuit should be relieved of pressure, otherwise, when the oil pipe connected with the cylinder is loosened, the high-pressure oil in the circuit will be rapidly ejected. When the hydraulic pressure comes back, the handwheel or pressure regulating screw at the relief valve should be loosened first, so that the pressure oil is unloaded, and then the power supply or power source is cut off, so that the hydraulic device stops running. 2. Disassembly should prevent damage to the top thread of the piston rod, the oil thread and the chrome layer on the piston rod surface.
Why does the hydraulic cylinder not return?
For a spring return cylinder, it is possible that 1, the spring is damaged. You can check it for processing. 2, the oil in the oil path is not unloaded, causing it to be unable to reset. 3, the cylinder piston is dead, resulting in no position. For double-acting cylinders, it is possible to: 1, the spool is not reversed, or is not changed to the correct position, check whether the reversing valve is normal (and whether there is electricity). 2, the cylinder piston is dead, resulting in no position, check and treatment can be. 3, the return oil pressure is insufficient, the inlet oil is not unloaded, the operation is not smooth. For reference only.
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