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发明公开
CN103758553A 液压支架的护帮梁结构及液压支架 无效 - 驳回

液压支架的护帮梁结构及液压支架
摘要：
本发明公开了一种液压支架的护帮梁结构及液压支架，护帮梁结构包括顶板，顶板的腹面的两侧分别纵向设有两件侧部主筋，两件侧部主筋的后端形成铰接耳与顶梁铰接，顶板的腹面的中部纵向设有一件或多件中部主筋，相邻的侧部主筋之间、侧部主筋与中部主筋之间、相邻的中部主筋之间设有盖板和横筋。改变了现有技术中护帮“板”的设计思路，采用“梁”的结构设计，提高了护帮梁的抗扭、抗弯强度。
摘要（英）：

The invention discloses a sprag beam structure for a hydraulic support, and the hydraulic support. The sprag beam structure comprises a top plate, wherein two side main bars are longitudinally arranged at the both sides of the ventral surface of the top plate respectively; the rear ends of the two side main bars form hinge lugs and are hinged with a top beam; one or more middle main bars are longitudinally arranged at the middle portion of the ventral surface of the top plate; cover plates and transverse bars are arranged between the adjacent side main bars, between the side main bars and the middle main bars, and between the adjacent middle main bars. The design thought of a sprag 'plate' in the prior art is changed, and a structural design of a 'beam' is adopted, thus enhancing the torsional strength and flexural strength of the sprag beam.

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