The suspension single hydraulic prop is a kind of constant resistance monomer hydraulic prop with external liquid supply, which is the supporting equipment of mechanized general mining working face as well as the end support equipment of fully mechanized mining working face. It is suitable for roof support and end roof support of coal mining working face, and can be applied to thin coal seam, medium thick coal seam and thicker coal seam because of its large bearing capacity, strong anti-deflection load capacity, large working stroke and wide range of use. Floating single hydraulic prop is a common support equipment.
Suspension single hydraulic prop with plunger suspension technology principle, make the hydraulic lift force directly through the role of the inner chamber prop live column on the roof, make the hydraulic lift force split the about four 5 of the support working resistance, make live column in the stress of the shaft up only about one 5 of the working resistance, improve the stability and security of the prop, also greatly improved the prop support height and carrying capacity; At present, single hydraulic prop products at home and abroad are using piston technology principle, can not make full use of hydraulic suspension force to share the working resistance of the column, so that the column bear all the working resistance, resulting in the column is often bent, the column damage, leading to roof accident.
The prop is no longer equipped with arc welds that are difficult to be guaranteed by technology, which also improves the strength and reliability of the prop, avoids the hidden danger of roof collapse caused by weld fracture, and ensures the safety of the staff. And at home and abroad with the prop of the prop series are in the column welding has installed three valve stigma, so that the strength of the column greatly discounted.
According to the different specifications of the prop, the weight of the whole column can be reduced by more than 15%-30% compared with the existing props at home and abroad.
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