一種大扭矩鉆桿制造技術(shù)

本實(shí)用新型專利技術(shù)的一種大扭矩鉆桿，是由一根以上的鉆桿依次套疊構(gòu)成，在每根鉆桿的端面上均增設(shè)了端面鍵。每根鉆桿的內(nèi)鍵槽和外鍵條均為梯形。其中,最里層鉆桿的長度最短。本實(shí)用新型專利技術(shù)的一種大扭矩鉆桿，結(jié)構(gòu)設(shè)計(jì)合理、克服了鉆桿端面斷裂、扭曲變形、造成卡管事故，延長了設(shè)備的使用壽命，提高了經(jīng)濟(jì)效益。內(nèi)外鍵的使用，防止鉆桿卡管和開裂等質(zhì)量事故的發(fā)生；產(chǎn)生徑向分力，保證每節(jié)鉆桿自動(dòng)定心對(duì)中，改善每節(jié)鉆桿的工作環(huán)境，更好地提高鉆桿的工作能力，傳遞扭矩的內(nèi)外鍵接觸面增大，有效地降低了鍵面單位載荷，提高了內(nèi)外鍵的承載能力；避免內(nèi)外鍵線接觸的發(fā)生。（*該技術(shù)在2021年保護(hù)過期，可自由使用*）

Large torque drill pipe

The utility model relates to a large torque drill rod, which is formed by stacking more than one drill rod in turn, and the end face of each drill rod is provided with an end face key. The inner keyway and foreign key strip of each drill rod are trapezoidal. Among them, the length of the innermost drill rod is the shortest. The utility model relates to a large torque drill rod, which has the advantages of reasonable structural design, overcoming the fracture of the end surface of the drill rod, twisting and deformation, causing the pipe clamping accident, prolonging the service life of the equipment and improving the economic benefit. The use of internal and external keys, to prevent the drill pipe and card cracking and other quality accidents; produce radial force, ensure each drill pipe automatic centering on, improve the working environment of each section of the drill pipe, drill pipe to improve the working ability, and key contact surface transfer torque increase, effectively reducing the key surface unit load to improve the bearing capacity of the key, inside and outside; avoid internal and external key line contact.

【技術(shù)實(shí)現(xiàn)步驟摘要】

【技術(shù)保護(hù)點(diǎn)】
１．一種大扭矩鉆桿，是由一根以上的鉆桿（１）依次套疊構(gòu)成，其特征是在每根鉆桿的端面上均增設(shè)了端面鍵（２）。

【技術(shù)特征摘要】

【專利技術(shù)屬性】
技術(shù)研發(fā)人員：王永智，武玉科，
申請(專利權(quán))人：王永智，
類型：實(shí)用新型
國別省市：23