修井动力钳的设计.doc

摘要 在油田修井作业过程中，依据新型修井作业油管钳系统的功能要求，提出新型修井作业油管钳主钳的设计方案及工作机构的改进设计。采用主钳、背钳安装在移动机构上，移动机构安装在井口上，主钳位于背钳之上，通过导杆总成连接，钳体沿移动机构导轨实现进给运动。采用坡板凸轮夹紧机构，钳头在正反方向连续卡紧管径为Φ6089mm的管柱，卡紧性能好，结构紧凑。为了提高修井效率，减轻修井工人的劳动强度，使工人尽量远离恶劣的工作环境，将目前的手动大钳改进为自动作业修井钳。主钳在对缺口和换挡上实现了自动化控制，设计方案结构简单、紧凑，性能可靠。作为石油修井作业过程中的重要设备，实现系统自动化控制是未来发展方向。 关键词：修井作业；油管钳；主钳；改进设计 Abstract Intheoilfieldprocessesofworkoverthearticlehaveputforwardthesystemdesignproposalsandthenimprovementdesigntheworkingmechanismofnewtubingtongswhichareallbasedonthefunctionalrequirementsofnewtubingtongsystem.Theuseofthemaintongandbacktongareinstalledonthemobilebodythemobilebodyareinstalledonthewellheadthemaintonglocatedonthebacktongandconnectedbytheguiderodassembly.Thetubingtongalongtherailsofthemobilebodytoachievethefeedmovement.Theuseofcamplateclampbodytheheadintheproandcondirectioncontinualclamptight6089mmdiameterofthestringithasgoodchuckingcharacterandcompactinthestructure.Inordertoimprovetheefficiencyofworkoverreducinglaborintensityofworkersandstayingawayfrompoorworkingconditionsthepresentmanualtongimprovesfortheautomatictongofworkover.Themaintongrealizeautomatecontrolinalinethegapsandshiftegearsthedesignproposalsimpleandcompactinthestructureandreliableinthefunction.Asthecriticalequipmentofoilworkovertherealizationofautomaticcontrolsystemisthefuturedirectionofthedevelopment. Keywords:workovertubingtongmaintongimprovementdesign 目录第 1 章概述...........................................................11.1 修井作业系统之自动作业钳概述...............................11.2 国内外研究现状............................................31.3 本文研究内容...............................................6第 2 章修井作业自动化主钳方案确定.....................................72.1 主钳方案的确定.............................................72.2 主钳的结构及工作原理......................................8第 3 章主钳的整体设计................................................103.1 传动方案的设计............................................10 3.2 夹紧机构的设计............................................13 3.3 制动机构的设计..........................................