Uncover the secret: Causes and judgment methods of scratching the main oil cylinder of fly ash brick machine
2021-11-11
In the working environment of the fly ash brick machine, the fly ash will float in the air. If the corresponding dust removal measures are not taken or the equipment sealing does not meet the requirements, the main oil cylinder will be scratched and the work of the equipment will be affected. In order to let everyone have a comprehensive understanding of it, let's decrypt the causes and judgment methods of the main oil cylinder of the fly ash brick machine.
Fly ash brick machine
The scratch of the main oil cylinder of the fly ash brick machine is caused by the long-term accumulation of the equipment without good maintenance under frequent and high-intensity working conditions. When the wear exceeds a certain degree, the equipment will have the problem of undervoltage during operation, and the brick can not reach the corresponding density and be scrapped. The proportional variable piston pump is selected. Within the pressure flow range, the main oil cylinder can adjust the pressure flow according to the needs, and the forming of brick is controlled by pressure maintaining. The system reduces the hydraulic impact, improves the oil temperature and prolongs the service life of the main oil cylinder. A hydraulic control check valve is added to ensure that the sliding block will not automatically drop with the failure of the balance valve. When the balance valve and the hydraulic control check valve fail together, the safety valve is a safety protection function.
The decompression problem caused by accidental scratch is sudden. There is no gradual process of normal wear and decompression. The formation of accidental scratch and the service life of brick fire extinguisher have no inevitable impact. Most of them occur in a short time after equipment installation or disassembly. Due to the unclean hydraulic system and the deposition of impurities in the main oil cylinder, local scratch will be caused under high-pressure movement, If it is not handled in time, the scratch area will become larger and larger, resulting in oil leakage of the main oil cylinder and failure to work.
The scratch of the main oil cylinder occurs inside the components. When there is no fault, it is difficult for us to find it. Once there is a fault, the loss will be great. It is necessary to prevent and judge in advance. The above judgment methods are summarized:
1. On the premise of normal operation of the fly ash brick machine, adjust the hydraulic system to make the main oil cylinder under high pressure, measure the maximum pressure and compare it with the rated pressure. If there is too much difference, it indicates that the main oil cylinder has been scratched;
2. Stop the automatic control system, maintain the high-pressure mode, open the oil return pipe of the main cylinder at a reasonable position, and observe the hydraulic oil leakage in the oil return pipe after the internal oil pressure is released. If the maximum allowable leakage is exceeded, it indicates that there is serious wear or some accidental scratches on the inner cavity wall of the main cylinder, it is necessary to shut down and repair the main cylinder.
The scratch damages the main cylinder of the fly ash brick machine greatly. In addition to the maintenance and repair of the equipment, we also need to regularly detect the main cylinder and check it with the above judgment method to avoid serious scratch, which makes the fly ash brick machine unable to work normally.
Automatic hydraulic brick mach...