In the light of the problems of the air balance system of model lcj1250 chain drive pumping unit , it is proposed to change the air balance with counterweight balance , and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation , low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke , pumping speed and maximum polished rod load 针对lcj1250气平衡式链条抽油机存在气平衡故障率高和现场维修困难等问题,提出将气平衡改造成工作可靠的重力平衡的方案,并确定了改造的三个原则:一是保证整机的可靠性,使抽油机运转平稳,振动噪音小,寿命长;二是力求降低生产成本,减少零部件制造,尽可能选用原来的通用件,舍去平衡缸和空气包等气平衡附件,在原往返架主体上悬挂一个配重箱;三是力求不改变冲程、冲次及最大悬点载荷等主要技术参数。
Abstract : in the light of the problems of the air balance system of model lcj1250 chain drive pumping unit , it is proposed to change the air balance with counterweight balance , and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation , low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke , pumping speed and maximum polished rod load 文摘:针对lcj1250气平衡式链条抽油机存在气平衡故障率高和现场维修困难等问题,提出将气平衡改造成工作可靠的重力平衡的方案,并确定了改造的三个原则:一是保证整机的可靠性,使抽油机运转平稳,振动噪音小,寿命长;二是力求降低生产成本,减少零部件制造,尽可能选用原来的通用件,舍去平衡缸和空气包等气平衡附件,在原往返架主体上悬挂一个配重箱;三是力求不改变冲程、冲次及最大悬点载荷等主要技术参数。
减少: reduce; decrease; lessen; cu ...零部件: components and parts; access ...零部件: components and parts; accessories and repairs; machine replacement parts; parts待焊零部件: parts to be welded吊杆零部件: boom fittings关键零部件: key components管架零部件: attachment of support合格零部件: qualified parts坏与零部件: industrial machinery & components机器零部件: machinery component精确零部件: precision parts and components可卸零部件: loose gear零部件编号: pn parts number零部件标准: labour hygiene standard; part-subassemble standard零部件的: partial零部件加工: part fabrication; parts fabrication零部件解冻: unfreeze parts零部件精坯: fine-blanked components零部件目录: parts catalog零部件配套: kitting零部件融资: spf spare parts financing零部件设计: detail design零部件生产: unit manufacturing零部件引线: part lead炉用零部件: parts of furnace