What this short edition brings to our partners is the relevant content of the single hydraulic prop, and our partners' understanding of the single hydraulic prop has increased a lot. The following article explains some application instructions of the single hydraulic prop, and we will explore it in depth.
1. The single hydraulic prop resistance tester is an instrument for testing the setting force (working resistance) of a single hydraulic prop. Therefore, the specifications of the three-way valve shall be stated in advance when ordering (such as whether it is an anti flight safety three-way valve, etc.);
2. Before the single hydraulic prop is officially put into use, the overall appearance shall be checked. In order to completely eliminate the gas in the cylinder barrel, it is necessary to conduct a lift within a stroke. At the same time, it is necessary to ensure that the injected emulsion does not contain impurities, so as to extend the life of the cylinder barrel and ensure the construction effect. In addition, the seal shall be coated with semi flowing sealing liquid before placement to improve the sealing performance of the seal ring and prevent gas and liquid leakage. Before liquid injection, the three-way valve shall be flushed, and then the liquid injection gun shall be inserted and tightened with the gun sleeve for liquid injection and column lifting. Proper use of single hydraulic prop will greatly help to prolong the service life.
3. One of the possible reasons for the failure of the single hydraulic prop is that the flat pad at the muzzle of the gun fits too tightly with the ejector pin. The pressure bar can be pressed repeatedly until the pressure gauge shows the pressure. Do not use too much force when rotating the pressure bar (only use a little force) to avoid damaging the pressure bar; The gauge head and needle do not return to the zero position, which does not affect the measurement accuracy. This is mainly due to the measurement of the liquid tension in the body; The thimble shall be removed and greased regularly to prevent corrosion.
4. After the single hydraulic prop supports the roof, unload the air from the lower chamber with the unloading handle, and then refill the liquid to support the roof until the initial support force is reached, so as to ensure the support effect. The rated working pressure of the three-way valve shall be selected and adjusted in strict accordance with the technical characteristics of the single hydraulic prop. Props of different specifications and models shall be equipped with corresponding applicable three-way valves.
