The single hydraulic prop for mining uses a hydraulic pressure to generate working resistance and achieve a single adjustable prop for lifting and unloading.
I. Large working schedule and low safety management cost
Each specification can replace 2-4 specifications of traditional piston type hydraulic prop, which reduces the frequency of changing different types of hydraulic props due to changes in the height of the working face and the movement of the roof and floor of the roadway, reducing the labor intensity of workers And additional spare number of props.
2. High support strength, good safety and stability
The single hydraulic prop has no load-bearing welds. At the same time, the pillar adopts the principle of suspension technology. The suspension force generated by the high-pressure liquid directly acts on the end of the top cover to reach four-fifths of the working resistance. The force on the prop is only one-fifth, which greatly improves the prop. Support stability and eccentric load capacity.
3. Leaks are easy to find, safe and reliable
Due to structural improvements, the situation of false jacking and detachment of the prop due to internal leakage is avoided. Once the prop leaks, it can be checked directly with the naked eye at the underground site, and the single hydraulic prop can be replaced at any time. Seal compensation and seal tightening are used. Technical principle, the greater the top plate pressure, the tighter the sealing surface fit, the less likely it is to leak.
Fourth, long service life, easy operation and maintenance
The overall structure is simple and the service life is long; it is easy to operate and easy to maintain, and it can greatly reduce the rate of jack-up and maintenance.
