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ZWM网格式放顶煤液压迈步支架由西北煤机二厂研制生产。 该产品架与架之间形成网络结构,不仅可提高支护强度,增加稳定性能,还可有效地,避免倒架、摆架、滑架、挤架现象;操作空间宽敞,放煤口较大,采用集中控制,主副尾梁为箱形结构及变截面箱形结构,支撑为双向单体液压支柱及球形联接结构,介质为乳化液。该支架对“三软”煤层也有较强的适应性。
ZWM mesh caving hydraulic step support from the Northwest Coal Plant Development and production. The network structure formed between the product shelf and the shelf can not only increase the supporting strength and increase the stability performance, but also effectively avoid the phenomenon of the frame, swing frame, carriage and extruding frame; the operation space is spacious and the coal discharge mouth is large , The use of centralized control, the main and secondary tail beam box-shaped structure and variable cross-section box-shaped structure, the support for the two-way single hydraulic prop and spherical coupling structure, the medium is emulsion. The support for the “three soft” seam also has strong adaptability.