The utility model relates to an oil pipe welding device, especially relates to a drill pipe wear with single side seam welding conductive welding device. The device is in the left and right axis of the front end of the shaft are provided with bearings, insulating sleeve fastening on the bearing, welding and the conductive rollers are located in the insulating sleeve, and one end of the two rollers respectively with one end of the conductive block contact, left and right and left and right conductive block insulation shaft, left and right axis are a spring and a pressing sleeve, one end of the spring is in contact with the end of the insulating sleeve, the other end of the spring and the pressing sleeve contact; the pressure of the spring so that the left and right conductive block and two roller reliable contact, forming a conductive path. The device is installed on the resistance welding machine and mounted on the resistance welding machine by welding the mounting frame, the guide post and the connecting plate as a whole. The utility model has the advantages that the two rollers are arranged on the same side of the weldment and remain concentric, and the contact resistance is small when the welding is conducted, the distribution area of the conductive region is even, and the welding quality is stable. It is very suitable for single resistance seam welding of drill pipe of wear-resistant belt.
【技术实现步骤摘要】
本技术涉及石油钻杆的制造及修复领域,尤其涉及一种石油钻杆耐磨带单面 缝焊导电焊接装置。
技术介绍
在传统的电阻缝焊机上,两个焊接滚轮是上下安装的,即滚轮位于焊件的两面。这 样的结构装置所形成的电流场是无法对石油钻杆的耐磨带焊丝进行焊接的,且在其次级回 路中,所采用的导电方式有如下两种第一种是利用铜轴瓦,并加注蓖麻油与石墨粉进行润 滑来导电;第二种是在旋轴部位采用水银进行导电。这两种导电方式在多年生产过程中存 在有如下主要缺点1.铜轴瓦在加注蓖麻油及石墨粉后,接触电阻较大,且导电区域分布不均,轴及轴 瓦的损伤较大,并影响焊接质量的稳定性。2.水银易对环境造成严重污染,现已禁止使用。
技术实现思路
本技术的目的在于提供一种接触电阻小,导电区域分布均勻,焊接质量稳定 的一种石油钻杆耐磨带单面缝焊导电焊接装置。本技术是在左轴及右轴的前端分别装有左右轴承,焊接滚轮绝缘套紧固在左 轴承上,导电滚轮绝缘套紧固在右轴承上,焊接滚轮设在焊接滚轮绝缘套外,导电滚轮设在 导电滚轮绝缘套外;导电滚轮与右导电块的一端相接触,焊接滚轮的一端与左导电块的一 端相接触;左导电块绝缘套设在左轴上,且位于 ...
【技术保护点】
1.一种石油钻杆耐磨带单面缝焊导电焊接装置,由焊接滚轮、导电滚轮、导电块、轴、轴承、弹簧及绝缘套等构成,其特征在于在左轴(11)及右轴(23)的前端分别装有左右轴承(4)及(29),焊接滚轮绝缘套(5)紧固在左轴承(4)上,导电滚轮绝缘套(30)紧固在右轴承(29)上,焊接滚轮(3)设在焊接滚轮绝缘套(5)外,导电滚轮(1)设在导电滚轮绝缘套30外;导电滚轮(1)与右导电块(28)的一端相接触,焊接滚轮(3)的一端与左导电块(6)的一端相接触;左导电块绝缘套(7)设在左轴(11)上,且位于左导电块(6)内,右导电块绝缘套(27)设在右轴(23)上,且位于右导电块(28)内; ...
【技术特征摘要】
【专利技术属性】
技术研发人员:宋佳,杨静波,宋曙光,
申请(专利权)人:咸阳通普材料连接与改性技术有限公司,
类型:实用新型
国别省市:61
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