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Advancing face support for mining operations - has base for hydraulic props swivelably attached at top to main and auxiliary caps
Advancing face support for mining operations - has base for hydraulic props swivelably attached at top to main and auxiliary caps
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机译:进一步支持采矿作业的工作面支撑-液压支柱的底座可旋转地顶部固定在主帽和辅助帽上
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摘要
Advancing face support for mining operations has base (10)on which are swivable mounted hydraulic props (16, 101). The props support an upper main cap (11) and an auxiliary cap (18) which is swivable attached to the end of the main cap. - The auxiliary cap is supported by a prop (16) whose upper end is hinged (15) to a rocking beam (13) having one end swivable attached to the hinge (12) to which the end of the auxiliary cap is fixed. A two-armed lever (20) is mounted on the hinge pin (12) and has one arm pair (201) coupled swivable on the side walls of the auxiliary cap. The two caps have an enclosed box profile.
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