Year1
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- 齐全
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The single hydraulic prop mainly consists of a top cover, a three-purpose valve, a living cylinder return spring, a handle body, a cylinder, a piston, a base, a piston guide ring, a living column guide ring, a spring cylindrical pin, and a limit ring. It is composed of anti-extrusion ring, type sealing ring, type sealing ring, etc.
>It is used in conjunction with metal hinged roof beams for roof support of mining working faces in horizontal or gently sloping coal seams. It can also be used for end support or temporary support of comprehensive mechanized coal mining working faces. It is suitable for ..thickness of coal seam. Zhou Zihan
The single hydraulic prop is an externally supplied constant-resistance single hydraulic prop. It can be used with various roof beams or as a pillar. It can be used to support the blasting working surface and create slabs. It can also be used Perform other temporary support functions. Its main features are long working stroke, low safety management cost, high support strength and retractable pillars, and good safety and stability. The pillar has no load-bearing welds. At the same time, the pillar adopts the principle of suspended pillar. The suspension force generated by the high-pressure liquid acts directly on the end of the Ding cover, reaching four-fifths of the working resistance. The main force is only one-fifth, which greatly improves the support of the pillar. The support has excellent stability and eccentric load capacity, leakage is easy to detect, and safety and reliability are high. Therefore, it can be widely used in thin coal seams, medium-thick coal seams and thick coal seam working faces.
The working principle of a single hydraulic prop includes the four processes of lifting column, initial support, bearing and returning column
When supporting the prop, the following points should be paid attention to
, & the prop should be perpendicular to The top and bottom plates are supported and have a certain "mountain facing" angle, so that the pillars are in a vertical stress state and are not easy to push down.
,&Move the pillar unloading valve toward the side of the coal wall at a certain angle to ensure the safety of pillar withdrawal and prevent the shearer from colliding with the unloading device.
,& There should be an appropriate distance between the pillars and the working surface transportation machinery to prevent the shearer from knocking over the pillars or damaging the oil cylinder, handle valve body and three-way valve.
,&The four claws of the pillar top cover should be stuck on the lace groove of the roof beam. It is not allowed to press the four claws on the roof beam or the roof beam joint.
&Weifang Yize Industry and Trade specializes in the production of various types of single pillars. We welcome new and old customers to call us for consultation. Our company will bring you satisfactory service.
Contact number Zhou Zihan
& Shanxi mining single hydraulic prop & single hydraulic prop single hydraulic prop manufacturer single hydraulic prop parameters single hydraulic prop complete model
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