大型齿轮座下箱体焊接工艺
Research on Welding Technology of Lower Box of Large Gear Seat
- 2022年52卷第4期 页码:107-112
DOI: 10.7512/j.issn.1001-2303.2022.04.16
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钟俊林,陈雪飞,缪辉.大型齿轮座下箱体焊接工艺[J].电焊机,2022,52(4):107-112.
ZHONG Junlin, CHEN Xuefei, MIAO Hui.Research on Welding Technology of Lower Box of Large Gear Seat[J].Electric Welding Machine, 2022, 52(4): 107-112.
国内某产品使用的大型齿轮座下箱体胚料,广泛采用铸造成型工艺生产,由于结构原因,其铸造工艺复杂、缺陷多、产品率低、生产成本较高。结构“铸改焊”后,工艺相对简单、焊接质量易于保证、产品合格率及材料利用率高,可大幅降低制造成本,因此焊接齿轮下箱体应用前景广泛。但大型齿轮下箱体焊接中,因材料板厚大,焊缝密集,焊接应力大,极易产生裂纹,同时焊接变形大,焊后加工尺寸难以保证。本文针对某大型齿轮座下箱体的焊接,在结构工艺分析的基础上,制定了合理的焊接工艺并得以实施。结果表明:采用CO,2,气体保护焊与富氩气体保护焊相结合的焊接方法,选择正确的放量尺寸、焊接顺序、焊接参数、坡口形式和相应的焊前、焊中及焊后热处理等工艺,完全能够满足结构的设计要求。
The casting molding process is widely used in the production of large gear seat in the domestic product, because of the case-structural reasons, the problem of the process is complicated, the casting defect is large, the product quality rate is low and the production cost is higher. After the construction of "casting change to welding", the technology is relatively simple, the welding quality is easy to guarantee, the highly product qualification rate and highly efficiency of the material can greatly reduce the manufacturing cost, so the application prospect of the welding in the case gear is broad. However, it is difficult to ensure the processing size of welding, because the material plate is thick and large, the weld is dense, the welding stress is large, it is easy to produce the crack, and the welding deformation is large, and the processing size is difficult to guarantee.This paper mainly studies the welding process of the lower box of large gear seat. On the basis of process analysis, a reasonable welding process is developed and implemented. The results show that the welding method combined with CO,2 ,shielded welding and argon shielded welding can fully meet the design requirements of the structure by choosing the right welding size, welding sequence, welding parameters, groove form and corresponding welding processes such as pre-welding, in-welding and post-welding heat treatment
齿轮座下箱体焊接应力与变形焊接工艺分析工艺措施
lower Box of gear seatwelding stress and deformationanalysis of welding processprocess measures
中国机械工程学会焊接学会,焊接手册(第3版修订本)第2卷材料的焊接[M].北京:机械工业出版社,2015.
徐龙勇. 夏仲军.大型复杂结构件的焊接应力与变形控制[J]. 焊接技术,2011(12):54-56.
XU Longyong,XIA Zhongjun.Control on welding stresses and deformation of large-scale and complicated structure[J]. Welding technique,2011(12):54-56.
周俊杰.大型焊接式齿轮箱体的加工工艺及质量控制措施[J].冶金设备,2013(02):74-77.
Zhou Junjie,Machining Process and Quality Control Measures of Large Welded Reducer Box[J]. Metallurgical equipment,2013(02):74-77.
张洋. 焊接式齿轮箱体的生产加工工艺及其质量控制策略[J].科技与企业,2016(10):235-236.
Zhangyang. Process and quality control strategy of welding gear box[J]. Technology and Enterprise,2016(10): 235-236.
任吉华,于涛,宿孝涛. 分步装配工艺在钢结构焊接变形控制[J]. 现代制造技术与装备, 2017(08):101-102.
RENG Jihua, Yutao, SU Xiaotao. Application of Step-by-step Assembly Technology in Welding Deformation Control of Steel Structures[J]. Modern manufacturing technology and equipment, 2017(08):101-102.
刘云龙. 焊工技师手册[M]. 北京:机械工业出版社,2004.
郭育宏.CO2气体保护焊在工程建设中的应用[J]. 机械工程与自动化,2005(06):101-102.
GUO Yuhong,Application of CO2 Shielded Welding Technology in Construction Projects[J]. Mechanical Engineering and Automation, 2005(06):101-102.
李真.戴列文. 富氩CO2气体保护焊在工程机械制造中的应用[J]. 机械工程师,2000(12):26-27.
Ll Zheng,DAI Leiwen. Application of Argon-rich CO2 Shielded Welding Technology in Construction machinery manufacturing[J].Mechanical Engineer,2000(12):26-27.
宋剑.大型齿轮焊接工艺研究[J]. 科学之友,2013(11):10,13.
SONG Jian,Research on welding technology of Large Gear[J]. Friend of Science Amateurs,2013(11):10,13.
宫平,常力,张林儒,等.转向架装配制造中的定位焊[J].电焊机,2011,41(11):55-57.
GONG Ping,CHANG Li,SONG Quanchao,etal.Positioned welding in bogie assembly manufacture[J].Eletric Welding Machine,2011,41(11):55-57.
刘云龙.焊工技师手册[M]. 北京:机械工业出版社,2004.
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