The convex-concave overlapping packing ring of the utility model belongs to the field of packing box with elastic or plastic fillers. It is composed of an elastic ring with square cross-section. The cross-section of the elastic ring is square. The core of the square cross-section is an elastic material layer, and the outer core is covered with a fibrous layer. The fibrous layer is composed of fibrous wires wound in an elastic material and is arranged on the upper plane of the square cross-section. There is at least one inverted cone-shaped convex edge, and at least one inverted cone-shaped groove corresponding to the convex edge is arranged on the lower plane of the inverted cone-shaped convex edge. The convex-concave overlapped packing ring of the utility model has the advantages of convenient replacement, good sealing performance, long service life, matching convex edges with grooves, tight sealing, greater pressure, and tighter sealing; the elastic material rubber in the core body is compressive and elastic, and the high strength and high modulus fibre wire wrapped around the core is not easy to stretch, wear resistance, and no leakage; the fracture on the packing root causes installation or leakage. It is convenient and fast to take down, and the shutdown time is short, which does not affect the production efficiency of oil wells.
【技术实现步骤摘要】
凸凹叠合的盘根环
本技术涉及带弹性或塑性填料的填料函领域,特别涉及凸凹叠合的盘根环。
技术介绍
现有的抽油光杆密封盘根,压帽在对盘根施加轴向平面压力进行密封时,需经常进行调整才能保证其密封性,当压帽施加的压力过大时,容易致使盘根丧失弹性;盘根的密封面磨损程度严重,需频繁更换,耗材又耗力;盘根多采用环形结构,更换时必须用钢锯将其顺时针锯开30°~45°切口,致使更换盘根时操作繁琐,井停的时间长,影响原油的产率。
技术实现思路
针对现有技术的不足,本技术提供了一种凸凹叠合的盘根环。本技术的凸凹叠合的盘根环,是由截面为方形的弹性环构成,弹性环方形截面的芯体是弹性材料层、在芯体外周包覆着纤维线层,所述的纤维线层是在弹性材料中盘绕的纤维线构成,在方形截面的上平面设有至少一条倒锥形的凸棱、其下平面设有与凸棱相对应的至少一条倒锥形凹槽。作为本技术的进一步改进,弹性环的上平面设有1~10条倒锥形的凸棱、其下平面设有与凸棱位置相对应的1~10条倒锥形凹槽。作为本技术的进一步改进,弹性环上有一倾斜断口,断口斜面与盘根环平面的锐角夹角为30°~45°。作为本技术的进一步改进,弹性材料选用耐 ...
【技术保护点】
1.凸凹叠合的盘根环,是由截面为方形的弹性环(1)构成,其特征在于弹性环(1)其方形截面的芯体(2)是弹性材料层、在芯体(2)外周包覆着纤维线层(3),所述的纤维线层(3)是在弹性材料中盘绕的纤维线构成,在方形截面的上平面设有至少一条倒锥形的凸棱(4)、其下平面设有与凸棱(4)相对应的至少一条倒锥形凹槽(5)。
【技术特征摘要】
1.凸凹叠合的盘根环,是由截面为方形的弹性环(1)构成,其特征在于弹性环(1)其方形截面的芯体(2)是弹性材料层、在芯体(2)外周包覆着纤维线层(3),所述的纤维线层(3)是在弹性材料中盘绕的纤维线构成,在方形截面的上平面设有至少一条倒锥形的凸棱(4)、其下平面设有与凸棱(4)相对应的至少一条倒锥形凹槽(5)。2.如权利要求1所述的凸凹叠合的盘根环,其特征在于弹性环(1)的上平面设有1~10条倒锥形的凸...
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。