The beam with curved plate of pumping unit horsehead, used in Oilfield beam pumping unit. On both sides of the circular arc plate are respectively welded on the Horsehead horsehead side panels, between the two head side panel is welded with a connecting plate, two side panels are parallel to each other in the head; lateral horsehead arc panel is welded with two circular arc plate, the length of two circular arc plate and the arc length of the panel unit the same plane contact two circular arc plane and the Horsehead arc panel plate, and two circular arc side edge and medial plate respectively horsehead side panel surface contact. The effect is: the arched plate is welded on the pumping unit horsehead arc arc panel surface, increase the Horsehead arc radius, up and down stroke in the process of pumping rod between large diameter hollow rod and head will not collide.
【技术实现步骤摘要】
【技术保护点】
１．一种带有弧形贴板的游梁式抽油机驴头，主要由驴头弧面板（１）、驴头侧面板（２）和贴板（３）组成；在圆弧形驴头弧面板（１）的两侧分别焊接有驴头侧面板（２），在两个驴头侧面板（２）之间焊接有连接板，两个驴头侧面板（２）相互平行；其特征在于：在驴头弧面板（１）的外侧焊接有两块圆弧形贴板（３），两块圆弧形贴板（３）的长度与驴头弧面板（１）的长度相同，两块圆弧形贴板（３）的内平面与驴头弧面板（１）的外平面接触，并且两块圆弧形贴板（３）的一侧边分别与驴头侧面板（２）的内侧面接触。
【技术特征摘要】
【专利技术属性】
技术研发人员：张维新，盛学方，李彬，赵波，
申请(专利权)人：中国石油天然气股份有限公司，
类型：实用新型
国别省市：11
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