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長(zhǎng) 春 大 學(xué) 畢業(yè)設(shè)計(jì)（論文）紙
電動(dòng)扳手設(shè)計(jì)
[摘要] 在大型鋼結(jié)構(gòu)建筑中，廣泛使用高強(qiáng)度螺栓鏈接。這種螺栓連接，在施工中要求用規(guī)定的擰緊力矩鎖緊螺母，以保證鏈接的可靠性。
由于高強(qiáng)度螺栓的材料和熱處理是嚴(yán)格控制和檢查的，因此螺栓定力矩切口處的扭剪斷裂力矩能夠控制在一個(gè)比較準(zhǔn)確的范圍，從而能保證螺栓連接的可靠性。當(dāng)擰緊力矩過(guò)大時(shí)，不能保證螺栓的強(qiáng)度；當(dāng)擰緊力矩過(guò)小時(shí)，又不能保證連接的可靠性。因此這種螺栓連接，在施工中要求用規(guī)定的擰緊力矩鎖緊螺母，以保證鏈接的可靠性。另外，高強(qiáng)度螺栓往往成批使用，并且工作的環(huán)境也比較堅(jiān)苦，如果是用普通扳手進(jìn)行定力矩?cái)Q緊，工人擰緊螺母的過(guò)程中會(huì)有很多不便，工作效率也會(huì)很低。綜合以上三點(diǎn)原因，在擰緊高強(qiáng)度螺栓時(shí)，我們采用電動(dòng)扳手代替手從扳手進(jìn)行擰緊。
電動(dòng)扳手以220V交流電源為動(dòng)力進(jìn)行工作，可以保證每個(gè)螺栓的擰緊力都在規(guī)定的范圍內(nèi)，同時(shí)，采用電動(dòng)扳手代替手動(dòng)扳手可以大大提高螺栓擰緊的速度，提高工人的工作效率，改善工人的勞動(dòng)強(qiáng)度
[關(guān)鍵詞] 電動(dòng)扳手 諧波傳動(dòng) 柔輪
Electric Wrench Design
[Abstract] In large steel structures, widely used in high strength bolts links. This bolt connection, in accordance with requirements of the construction of torque lock nut and to guarantee the reliability of the link.
Due to the high strength bolts of material and heat treatment is strict inspection and control, thus shall the bolt torque incision torshear fracture in a moment can control the accuracy and can guarantee, the reliability of the bolt connection. When large torque, cannot guarantee the strength bolt, When the torque, and after hours cannot guarantee the reliability of the connection. Therefore the bolt connection, in accordance with requirements of the construction of torque lock nut and to guarantee the reliability of the link. Additionally, high strength bolts, and often used to working environment is hard, and if it's used for torque wrench on ordinary workers, tighten lock nut process will have a lot of inconvenience, the working efficiency is also very low. Three reasons, in comprehensive above tighten high strength bolts, we adopt electromotive spanner from wrench to replace hand tighten.
Electromotive spanner to ac power for power on 220V work, can guarantee each bolt tightened force within a prescribed scope, at the same time, using electric wrench instead of manual wrench screw bolts can greatly improve the speed, improve work efficiency, improve the worker labor intensity
[Key words] Electric wrench Harmonic Drive Flexspline