The tower type belt driven long stroke pumping unit is composed of the crank-linkage-slide mechanism, movable pulley-narrow belt-fixed pulley mechanism and compound drum stroke-increment mechanism.
无游梁塔架式胶带传动长冲程抽油机由曲柄-连杆-滑块机构、动滑轮-窄胶带-定滑轮机构和复合滚筒增程机构组成。
The movable backrest plate bed is characterized in that: along with the rocking up of the movable backrest plate, the pulley pole support is inclined by the backrest plate until being supported.
本发明的特征在于随着活动靠背板的摇起，滑轮支杆随靠背板倾斜直至撑起。
The movable backrest plate bed is characterized in that: along with the rocking up of the movable backrest plate, the pulley pole support is inclined by the backrest plate until being supported.
本发明的特征在于随着活动靠背板的摇起，滑轮支杆随靠背板倾斜直至撑起。
应用推荐