The utility model relates to a lifting oil sucker rod with changeable weight type rod elevator, including U type derrick and elevator seat is installed in the U type boom through the ring, elevator seat assembly with a switching mechanism and switching mechanism for hand side board wrench, in the elevator seat and pumping rod parts section connected installed one is made of 45CrNiMo material is arranged in the middle of the clamping opening replaceable ram stalls by the positioning bolt. With the rod of the sucker rod lifting elevator with different specifications, only need to replace the rod elevator on the corresponding weight can not only save the handling rod elevator time, but also the rod elevator the easy wear parts into wearing parts, after a period of time only change of weight without discarding the whole elevator, the product has the advantages of simple structure, convenient operation, high work efficiency, low cost, long service life, can greatly reduce the labor intensity of operating workers.
【技术实现步骤摘要】
【技术保护点】
1.一种可换压砣式抽油杆吊卡,包括U型吊杆(5)和通过挡圈(3)安装在U型吊杆(5)下的吊卡座(4),吊卡座(4)内装配有主板手(6)开合机构和副扳手(7)开合机构,其特征是在吊卡座(4)中与抽油杆节相连的部位处通过定位螺栓(1)安装有一个由45CrNiMo材料制成的中间开有夹持开档口的可更换式压砣(2),所说的压砣(2)取自一组压砣中的一个,组内各压砣中的夹特开档口尺寸可分别对应夹持于各常用规格抽油杆中的一种抽油杆。
【技术特征摘要】
【专利技术属性】
技术研发人员:陈尚年,李正泉,刘程宝,
申请(专利权)人:西安秦森科技有限公司,
类型:实用新型
国别省市:87
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