It is reliable and it is safe to drive the vehicle.
1 question proposed that since the opening of the vehicle reducer of Xuzhou North Marshalling Station, the up and down hump reducer has not occurred when there is a malfunction. The statistics and the number of faults since 1990 are as follows.
Faulty radar and electrical control system hydraulic control system cranking over-mechanical transmission system does not alleviate the tenth. It can be seen from 1 that the main reason for the failure of the reducer caused by the Xubei marshalling station is the failure of the hydraulic control system. For the failure of the radar control system, We specially purchased the radar tester, set up the radar work area to be responsible for the radar access inspection and repair and rotation repair. The radar faults are mainly concentrated in the original downlink marshalling station 2103 radar and the initial 8-leg radar in the upstream opening, which is now basically stable. The cranking occurred a total of 41 times, mainly in the 12-vehicle reducer, a few 2 纟 vehicle reducer, and 丌3 also occurred. The hydraulic control system has a total of 96 faults, of which 46 cylinder faults have occurred. I have set up a hydraulic maintenance workshop in our section, which is responsible for the maintenance test and rotation repair of hydraulic cylinders. In addition, there are 50 faults occurring in the directional control valve. The fault phenomenon is the valve. Through the analysis of the control valve 2, the foreign matter in the valve is mainly iron scraper seal and other unknown impurities. The main sources of these impurities are as follows: Quality is not tight during construction.
Long-term wear of hydraulic equipment components, oil cylinder strain and aging of the inner seal of the hydraulic control valve.
The grassroots units do not have the ability to overhaul hydraulic components.
During the overhaul replacement of the reducer, the process level of the hydraulic pipeline transformation is not high.
The oil quality has not been purified for a long time, and it has formed a vicious circle over time.
The hydraulic system filter unit is not set properly.
3 Solution Due to the busy operation of the Xuzhou North Marshalling Station, it is impossible to completely replace the oil circuit. Taking a step-by-step dilution is not the fundamental solution to the problem. Therefore, according to the status quo of the equipment, we will tackle the following aspects and exchange the least amount of investment for the maximum benefit. The specific content is as follows: Since the current base station section does not have a good inspection and testing method for the hydraulic valve components, only the insulation test can be performed. Therefore, in the hump microcomputer monitoring, the number of times of the speed reducer, that is, the number of times of the control valve, needs to be detected.
The normal wear of mechanical hydraulic equipment is unavoidable. The oil quality must be cleaned up in time without deactivating the equipment. In ancient times, the law will be smashed from the root car. After investigation and analysis, three methods can effectively deal with this question.
The indoor fuel tank adds a bypass net oil system. This method can effectively deal with lighter specific impurities and moisture, but cannot deal with impurities with a large specific gravity such as iron filings. The reason is that the fuel tank is generally set to the highest in the entire oil pipeline. Where.
Decontamination equipment is installed at the lowest end of the main road.
The decontamination device can effectively treat the impurities with a large specific gravity. The maintenance personnel only need to clean the decontamination equipment regularly to close the valve and open the valve 2 after cleaning. After the cleaning is completed, the valve 2 is closed, and the opening of the valve does not affect. The entire hydraulic system is in normal use.
Add parallel sets of filtration equipment in front of each control valve box.
The control valve is described as follows. Under normal circumstances, the valve 1 is closed and the oil passage is passed through 2435. When the cleaning device 4 is periodically cleaned, it is only necessary to close the valve 23 and open the valve oil routing valve 1 directly to the control valve 5, which has no effect on transportation production.
The control valve is double-set and has been adopted. ,
PHJ0815 H Beam Assembling Welding And Straightening Machine
PHJ0815 H beam productions line is suitable for making conventional H beam. H-beam generally consists of a web and 2 flanges. Width of flange plate is 150--800 mm.Height of web plate is 160--1500 mm.
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