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1、recovery and treatment in a timely manner. At the time of construction, should be taken to prevent dust and mud spill leak, measures such as the sewage outflow, vehicles stained with dirt, construction waste someone to clean up, to avoid polluting the environment 3.2 night arrangements of noise emit

2、ted by construction equipment, mixer noise emitted by machinery and equipment next to foam for noise control to prevent noise pollution of the surrounding environment. 3.3 construction managers and construction personnel, special operations personnel listing jobs, site operators, leaders, managers,

3、operators, wearing a helmet is divided into red, blue and yellow species. 3.4 site construction and companys comprehensive evaluation, check scores published examination results issued on a regular basis. 4, construction site environmental protection measures in order to protect and improve the livi

4、ng environment and the ecological environment, prevent construction and operation of pollution and nuisance, safeguard the health of residents and workers near the construction area, promoting the development of Socialist construction, environmental protection must be the construction site. 4.1 dail

5、y by the Deputy Project Manager, construction, safety officer for the afternoon the second comprehensive self test, where a violation of the provisions of the environment protection in construction site must be promptly identified and corrective action, made by construction workers on the day of the

6、 construction of the log on post records. 4.2 monthly by the Department of projects to be checked, according to the environmental protection in construction site inspection, evaluation criteria for inspection score, fill in the score sheet as the basis for site evaluation of safe production and civi

7、lized. During the inspection, do not meet the environmental requirements of the "three" (people, time, and measures) modification, implementation and review review the duties specified. 4.3 4.3.1 pollution prevention measures in construction site clean up rubbish, used motor vehicle shipments, no fr

8、ee air dispersion caused by dust. Construction of refuse to be cleaned up to a designated location, no feel free to pile up, cleaned up and when adequate water to reduce dust. 4.3.2 earthmoving construction site entrances and set the car wash, and arrange for someone to clean up tire, not wheel dirt

9、 into other roads, affecting the city clean. 4.3.3 construction road construction site before construction ready plans and setting, make full use of red line layout, arrangement of temporary construction road, grass-roots energising, pavement paving the way Coke button, fine aggregate, and water

10、at all times, reduce road dust. 4.3.4 construction when the protection of urban public facilities have been built, reasonable arrangements within the lot of construction organization, construction on the normal life of the residents and to minimize the impact of leisure. 4.3.5 easy cloud of fine mat

11、erialWe will continue to improve the companys internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role

12、of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication "zero re

13、sistance". 　　To constantly perfect ERP, and BFS++, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistan

14、t role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS++, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure "zero."

15、 　　To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization ca

16、reer health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that

17、 the business of "zero risk". To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, acti

18、ve should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. 　　T

19、o further standardize trading, and strive to achieve "according to law, standardize and fair." Innovation of performance management, to ensure that potential employees "zero fly". To strengthen performance management, process control, enhance employee evaluation and levels of effective communication

20、 to improve performance management. To further quantify and refine employee standards ... Work, full play party, and branch, and members in "five type Enterprise" construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening "four good" leadership

21、 construction, full play levels cadres in enterprise development in the 本科畢業(yè)設(shè)計(jì)(論文) 題目：焊接機(jī)械手的結(jié)構(gòu)設(shè)計(jì) 系 別： 機(jī)電信息系 專 業(yè)：機(jī)械設(shè)計(jì)制造及其自動(dòng)化 班 級(jí)： 學(xué) 生： 學(xué) 號(hào)： 指導(dǎo)教師： 　　　　　　　　　　　　　 2013年5月 　　　　　　　　　　　　　 recovery a

22、nd treatment in a timely manner. At the time of construction, should be taken to prevent dust and mud spill leak, measures such as the sewage outflow, vehicles stained with dirt, construction waste someone to clean up, to avoid polluting the environment 3.2 night arrangements of noise emitted by con

23、struction equipment, mixer noise emitted by machinery and equipment next to foam for noise control to prevent noise pollution of the surrounding environment. 3.3 construction managers and construction personnel, special operations personnel listing jobs, site operators, leaders, managers, operators,

24、 wearing a helmet is divided into red, blue and yellow species. 3.4 site construction and companys comprehensive evaluation, check scores published examination results issued on a regular basis. 4, construction site environmental protection measures in order to protect and improve the living environ

25、ment and the ecological environment, prevent construction and operation of pollution and nuisance, safeguard the health of residents and workers near the construction area, promoting the development of Socialist construction, environmental protection must be the construction site. 4.1 daily by the D

26、eputy Project Manager, construction, safety officer for the afternoon the second comprehensive self test, where a violation of the provisions of the environment protection in construction site must be promptly identified and corrective action, made by construction workers on the day of the construct

27、ion of the log on post records. 4.2 monthly by the Department of projects to be checked, according to the environmental protection in construction site inspection, evaluation criteria for inspection score, fill in the score sheet as the basis for site evaluation of safe production and civilized. Dur

28、ing the inspection, do not meet the environmental requirements of the "three" (people, time, and measures) modification, implementation and review review the duties specified. 4.3 4.3.1 pollution prevention measures in construction site clean up rubbish, used motor vehicle shipments, no free air dis

29、persion caused by dust. Construction of refuse to be cleaned up to a designated location, no feel free to pile up, cleaned up and when adequate water to reduce dust. 4.3.2 earthmoving construction site entrances and set the car wash, and arrange for someone to clean up tire, not wheel dirt into othe

30、r roads, affecting the city clean. 4.3.3 construction road construction site before construction ready plans and setting, make full use of red line layout, arrangement of temporary construction road, grass-roots energising, pavement paving the way Coke button, fine aggregate, and water at all tim

31、es, reduce road dust. 4.3.4 construction when the protection of urban public facilities have been built, reasonable arrangements within the lot of construction organization, construction on the normal life of the residents and to minimize the impact of leisure. 4.3.5 easy cloud of fine materialof ba

32、ckbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability.

33、To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. 　　To conscientiously sum up the Olympic security controls, promo

34、ting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is about to ring, at this time of year, we clearly feel the pulse of the XX power generation company to flourish, to more clearly hear XX powe

35、r generation companies mature and symmetry breathing. Recalling past one another across a railing, we are enthusiastic and full of confidence. Future development opportunities, we more exciting fight more spirited. 　　Employees, let us together across 2013 full of challenges and opportunities, to cr

36、eate a green, low-cost operation, full of humane care of a world-class power generation company and work hard! The occasion of the Spring Festival, my sincere wish that you and the families of the staff in the new year, good health, happy, happy 焊接機(jī)械手的結(jié)構(gòu)設(shè)計(jì) 摘　　要 本設(shè)計(jì)為焊接機(jī)械手的結(jié)構(gòu)設(shè)計(jì)，主要研究?jī)?nèi)容：腰部回轉(zhuǎn)機(jī)構(gòu)的設(shè)計(jì)；大

37、、小臂和腕部回轉(zhuǎn)的結(jié)構(gòu)設(shè)計(jì)。 本設(shè)計(jì)由整體布局入手，參考現(xiàn)有關(guān)節(jié)型機(jī)械臂的相關(guān)設(shè)計(jì)，初步確定腰部的轉(zhuǎn)動(dòng)慣量，從而確定電機(jī)的選型，安裝等相關(guān)設(shè)計(jì)。在機(jī)械臂的靈活和精度的前提下完成總體結(jié)構(gòu)的設(shè)計(jì)，然后根據(jù)總體結(jié)構(gòu)，從而確定本設(shè)計(jì)的機(jī)械臂各個(gè)主要零部件的設(shè)計(jì)。 在主要零部件的設(shè)計(jì)中，主要包括腰部殼體的設(shè)計(jì)、軸的結(jié)構(gòu)設(shè)計(jì)、軸承的選擇、電機(jī)的設(shè)計(jì)計(jì)算、大小臂的結(jié)構(gòu)和固定等。 本設(shè)計(jì)整體在現(xiàn)有關(guān)節(jié)型機(jī)械臂的結(jié)構(gòu)上做了修改，使得它能夠更好的滿足本設(shè)計(jì)的設(shè)計(jì)要求。本設(shè)計(jì)結(jié)構(gòu)簡(jiǎn)單、重量輕、外形尺寸小、設(shè)備費(fèi)用低、運(yùn)轉(zhuǎn)安全、操作方便、便于維修和管理。 關(guān)鍵詞：機(jī)械手；諧波減速器；結(jié)構(gòu)設(shè)計(jì)

38、 I Structure design of robot arm Abstract The design for the design of welding structure of the manipulator, the main research contents: the design of the waist turning mechanism； structure design of large, small arm and wrist rotation. This design by the overall layout with reference to the

39、 relevant design, the existing joint type manipulator, preliminary determine the moment of inertia of the waist, so as to determine the motor selection, installation and other related design. Complete the design of the overall structure of the flexible manipulator based on precision and the next, an

40、d then based on the overall structure, design of mechanical arm to determine the design of all the major components of the. The design of the main components, including the housing design, structural design of shaft, bearing selection, design and calculation of the size of motor, arm structure and

41、fixed. The design of the whole made changes in the existing joint type manipulator structure, so that it can better meet the design requirement of this design. The design has simple structure, light weight, small size, low cost of equipment, operation safety, convenient operation, easy to repair an

42、d management. KeyWords：robot arm；harmonic drive；structure design 目 錄 1 緒論 1 1.1 機(jī)器人簡(jiǎn)介 1 1.1.1 機(jī)器人的發(fā)展及應(yīng)用 2 1.1.2 點(diǎn)焊機(jī)器人介紹及其研究意義 4 1.1.3 機(jī)器人的組成 6 1.2 機(jī)械手的組成 8 1.3 本文主要研究工作 11 2 機(jī)械手的總體結(jié)構(gòu) 12 2.1 機(jī)械手總體結(jié)構(gòu)的類型 12 2.2 設(shè)計(jì)具體采用方案 13 3 機(jī)械手腰部機(jī)座 15 3.1 機(jī)械手腰部機(jī)座結(jié)構(gòu)的設(shè)計(jì) 15 3.2 機(jī)械手腰部機(jī)座設(shè)計(jì)的具體采用方案 1

43、5 3.3 電動(dòng)機(jī)的選擇 16 3.4 減速器的選擇 17 3.5 鍵的選擇 18 4 機(jī)械手手臂的結(jié)構(gòu)設(shè)計(jì) 20 4.1 設(shè)計(jì)具體采用方案 21 4.2 大臂電動(dòng)機(jī)的選擇 21 4.3 大臂減速器的相關(guān)計(jì)算 22 4.4 小臂電動(dòng)機(jī)的選擇 23 4.5 小臂減速器的相關(guān)計(jì)算 24 5 機(jī)械手腕部的結(jié)構(gòu)方案設(shè)計(jì) 27 5.1 腕部電動(dòng)機(jī)的選擇 27 5.2 腕部減速器的選擇 27 6 軸承的選用與校核 29 7 結(jié)論 39 參考文獻(xiàn) 40 致謝 41 畢業(yè)設(shè)計(jì)（論文）知識(shí)產(chǎn)權(quán)聲明 42 畢業(yè)設(shè)計(jì)（論文）獨(dú)創(chuàng)性聲明 43 13 2 機(jī)械手的總體

44、設(shè)計(jì) 圖紙和說(shuō)明書(shū)聯(lián)系QQ2576636538 2 機(jī)械手的總體結(jié)構(gòu) 2.1 機(jī)械手總體結(jié)構(gòu)的類型 工業(yè)機(jī)器人的結(jié)構(gòu)形式主要有直角坐標(biāo)結(jié)構(gòu)，圓柱坐標(biāo)結(jié)構(gòu)，球坐標(biāo)結(jié)構(gòu)，關(guān)節(jié)型結(jié)構(gòu)四種。各結(jié)構(gòu)形式及其相應(yīng)的特點(diǎn)，分別介紹如下: a. 直角坐標(biāo)機(jī)器人結(jié)構(gòu) 直角坐標(biāo)機(jī)器人的空間運(yùn)動(dòng)是用三個(gè)相互垂直的直線運(yùn)動(dòng)來(lái)實(shí)現(xiàn)的。為了實(shí)現(xiàn)一定的運(yùn)動(dòng)空間，直角坐標(biāo)機(jī)器人的結(jié)構(gòu)尺寸要比其他類型的機(jī)器人的結(jié)構(gòu)尺寸大得多。 直角坐標(biāo)機(jī)器人的工作空間為一空間長(zhǎng)方體。直角坐標(biāo)機(jī)器人主要用于裝配作業(yè)及搬運(yùn)作業(yè)，直角坐標(biāo)機(jī)器人有懸臂式，龍門(mén)式，天車式三種結(jié)構(gòu)。 b. 圓柱坐標(biāo)機(jī)器人結(jié)構(gòu) 圓柱坐標(biāo)機(jī)

45、器人的空間運(yùn)動(dòng)是用一個(gè)回轉(zhuǎn)運(yùn)動(dòng)及兩個(gè)直線運(yùn)動(dòng)來(lái)實(shí)現(xiàn)的。這種機(jī)器人構(gòu)造比較簡(jiǎn)單，精度還可以，常用于搬運(yùn)作業(yè)。其工作空間是一個(gè)圓柱狀的空間。 c. 球坐標(biāo)機(jī)器人結(jié)構(gòu) 球坐標(biāo)機(jī)器人的空間運(yùn)動(dòng)是由兩個(gè)回轉(zhuǎn)運(yùn)動(dòng)和一個(gè)直線運(yùn)動(dòng)來(lái)實(shí)現(xiàn)的。這種機(jī)器人結(jié)構(gòu)簡(jiǎn)單、成本較低，但精度不很高。主要應(yīng)用于搬運(yùn)作業(yè)。其工作空間是一個(gè)類球形的空間。 d. 關(guān)節(jié)型機(jī)器人結(jié)構(gòu) 關(guān)節(jié)型機(jī)器人的空間運(yùn)動(dòng)是由三個(gè)回轉(zhuǎn)運(yùn)動(dòng)實(shí)現(xiàn)的。關(guān)節(jié)型機(jī)器人動(dòng)作靈活，結(jié)構(gòu)緊湊，占地面積小。相對(duì)機(jī)器人本體尺寸，其工作空間比較大。此種機(jī)器人在工業(yè)中應(yīng)用十分廣泛，如焊接、噴漆、搬運(yùn)、裝配等作業(yè)，都廣泛采用這種類型的機(jī)器人[19]。

46、本題目規(guī)格參數(shù): 腰部回轉(zhuǎn)最大角度280度； 擺動(dòng)最大角度120度； 工作范圍范圍0-450mm； 本機(jī)械手的主要?jiǎng)幼魇牵? 首先腰部回轉(zhuǎn)機(jī)械臂和焊點(diǎn)處于同一平面；接著大臂回轉(zhuǎn)，調(diào)整焊槍和焊點(diǎn)的距離；然后小臂回轉(zhuǎn)，使焊槍接觸焊點(diǎn)；最后腕部回轉(zhuǎn)，使焊槍和焊點(diǎn)垂直，達(dá)到焊接的目的。 2.2 設(shè)計(jì)具體采用方案 具體到本設(shè)計(jì)，因?yàn)楹笜屬|(zhì)量約0.5KG，且考慮到焊接機(jī)械手的加工精度，應(yīng)盡量簡(jiǎn)化結(jié)構(gòu)，以減小成本、提高可靠度。該機(jī)械手在工作中需要四種運(yùn)動(dòng),腰部回轉(zhuǎn)；大臂回轉(zhuǎn)；小臂回轉(zhuǎn)；腕部回轉(zhuǎn)。綜合考慮，機(jī)械手自由度數(shù)目取為四。因此選擇關(guān)節(jié)型機(jī)械臂。 具體到本設(shè)計(jì)，要求工作區(qū)間0-4

47、50mm，擴(kuò)大到0-60mm，為擴(kuò)大1/3倍。因?yàn)锳2+b2≥2ab。所以當(dāng)c一定時(shí)，a=b機(jī)械臂為最短。6002=2a2。A≈424.3，又因?yàn)樾”郾却蟊鄹`活，活動(dòng)更頻繁，所以初始取a（大臂）=500mm；b（小臂）=400mm；c（腕部）=100mm。 整體布局如圖： 圖2.1 整體尺寸設(shè)計(jì)圖 本設(shè)計(jì)的三維建?；趕olidworks。首先進(jìn)行腰部回轉(zhuǎn)機(jī)構(gòu)的結(jié)構(gòu)設(shè)計(jì)，再進(jìn)行大臂擺動(dòng)機(jī)構(gòu)的設(shè)計(jì)，然后進(jìn)行小臂擺動(dòng)機(jī)構(gòu)的設(shè)計(jì)，最后進(jìn)行腕部的設(shè)計(jì)。在所有設(shè)計(jì)完成之后，整體的效果如下圖所示： 圖2.2 設(shè)計(jì)完成整體圖 3 機(jī)械手腰部機(jī)座 3 機(jī)械手腰部機(jī)座 3

48、.1 機(jī)械手腰部機(jī)座結(jié)構(gòu)的設(shè)計(jì) 進(jìn)行了機(jī)械手的總體設(shè)計(jì)后，就要針對(duì)機(jī)械手的腰部、大臂、小臂、腕部等各個(gè)部分進(jìn)行詳細(xì)設(shè)計(jì)。 機(jī)械手腰座結(jié)構(gòu)的設(shè)計(jì)要求： 工業(yè)機(jī)器人腰座，就是圓柱坐標(biāo)機(jī)器人，球坐標(biāo)機(jī)器人及關(guān)節(jié)型機(jī)器人的回轉(zhuǎn)基座。它是機(jī)器人的第一個(gè)回轉(zhuǎn)關(guān)節(jié)，機(jī)器人的運(yùn)動(dòng)部分全部安裝在腰座上，它承受了機(jī)器人的全部重量。在設(shè)計(jì)機(jī)器人腰座結(jié)構(gòu)時(shí)，要注意以下設(shè)計(jì)原則： a. 腰座要有足夠大的安裝基面，以保證在工作時(shí)整體安裝的穩(wěn)定性。 b. 腰座要承受機(jī)器人全部的重量和載荷，因此，機(jī)器人的基座和腰部軸及軸承的結(jié)構(gòu)要有足夠大的強(qiáng)度和剛度，以保證其承載能力。 c. 機(jī)器人的腰座是機(jī)器人的第

49、一個(gè)回轉(zhuǎn)關(guān)節(jié)，它對(duì)機(jī)器人末端的運(yùn)動(dòng)精度影響最大，在設(shè)計(jì)時(shí)要特別注意腰部軸系及傳動(dòng)鏈的精度與剛度的保證。 d. 腰部的回轉(zhuǎn)運(yùn)動(dòng)要有相應(yīng)的驅(qū)動(dòng)裝置，它包括驅(qū)動(dòng)器（電動(dòng)、液壓及氣動(dòng)）及減速器。驅(qū)動(dòng)裝置一般都帶有速度與位置傳感器，以及制動(dòng)器。 e. 腰部結(jié)構(gòu)要便于安裝、調(diào)整。腰部與機(jī)器人手臂的聯(lián)結(jié)要有可靠的定位基準(zhǔn)面，以保證各關(guān)節(jié)的相互位置精度。要設(shè)有調(diào)整機(jī)構(gòu)，用來(lái)調(diào)整腰部軸承間隙及減速器的傳動(dòng)間隙。 f. 為了減輕機(jī)器人運(yùn)動(dòng)部分的慣量，提高機(jī)器人的控制精度，一般腰部回轉(zhuǎn)運(yùn)動(dòng)部分的殼體是由比重較小的鋁合金材料制成，而不運(yùn)動(dòng)的基座是用鑄鐵或鑄鋼材料制成[20]。 3.2 機(jī)械手腰部機(jī)

50、座設(shè)計(jì)的具體采用方案 腰座回轉(zhuǎn)的驅(qū)動(dòng)形式要么是電機(jī)通過(guò)減速機(jī)構(gòu)來(lái)實(shí)現(xiàn)，要么是通過(guò)擺動(dòng)液壓缸或氣壓缸來(lái)實(shí)現(xiàn)，目前的趨勢(shì)是用前者?？紤]到腰座是機(jī)器人的第一個(gè)回 轉(zhuǎn)關(guān)節(jié)，對(duì)機(jī)械手的最終精度影響大，故采用電機(jī)通過(guò)減速機(jī)構(gòu)驅(qū)動(dòng)來(lái)實(shí)現(xiàn)腰部的回轉(zhuǎn)運(yùn)動(dòng)。 3.3 電動(dòng)機(jī)的選擇 設(shè)兩臂及手腕繞各自重心軸的轉(zhuǎn)動(dòng)慣量分別為JG1、JG2、JG3，JG4根據(jù)平行軸定理可得繞軸0的轉(zhuǎn)動(dòng)慣量為： （3.1）（3.2） m3=0.5kg；m2=5kg；m1=7kg；m0=7kg； 設(shè)輸出軸速度為所需時(shí)間；

51、 機(jī)座 （3.3） 若考慮繞機(jī)器人手臂的各部分重心軸的轉(zhuǎn)動(dòng)慣量及摩擦力矩，則旋轉(zhuǎn)開(kāi)始時(shí)的啟動(dòng)轉(zhuǎn)矩可假定為15N.m。 電機(jī)功率可按下式估算 （3.4） 其中：Pm為電動(dòng)機(jī)功率W； MLP為負(fù)載力矩； 為負(fù)載轉(zhuǎn)速； 為傳動(dòng)裝置效率，初定0.9； 系數(shù)為經(jīng)驗(yàn)數(shù)據(jù)，取2.5； （3.5） 博美德PL80-100/SM80-013-30LFB； 參數(shù)如下： 表3-1 電機(jī)參數(shù) 額定功率 額定轉(zhuǎn)矩 額定轉(zhuǎn)速

52、 轉(zhuǎn)子慣量 400w 1.3N.m 3000rpm 0.89X10-4kg.m2 電機(jī)結(jié)構(gòu)外形如圖： 圖3.1 電機(jī)結(jié)構(gòu)外形圖 3.4 減速器的選擇 因?yàn)檎w最高轉(zhuǎn)速要求30r/min。伺服電機(jī)在額定轉(zhuǎn)速之下可以調(diào)節(jié)需要轉(zhuǎn)速并正常工作。所以以最高轉(zhuǎn)速計(jì)算傳動(dòng)比。 （3.6） 減速器選用配套的 博美德PL80-100型，減速比100。 減速器如圖所示： 圖3.2 減速機(jī)安裝圖 參數(shù)如下： 額定輸出扭矩：52～110Nm 轉(zhuǎn)動(dòng)慣量：0.39～0.77K

53、gcm2/ 故障停止扭矩：104～220Nm 滿載效率：90% 額定輸入速度：4000min-1/ 工作溫度：-25～+90 最大輸入速度：6000min-1/ 潤(rùn)滑方式：合成脂潤(rùn)滑（長(zhǎng)效潤(rùn)滑） 安裝方式：任意 防護(hù)等級(jí)：IP65 平均壽命：20000h 法蘭精度:DIN 42955-R 輸出軸鍵標(biāo)準(zhǔn):圓頭普通平鍵（A型）GB1096-79。 3.5 鍵的選擇 鍵已標(biāo)準(zhǔn)化，設(shè)計(jì)時(shí)需要先根據(jù)工作要求和軸徑上鍵的類型以及尺寸

54、來(lái)選擇鍵，然后再進(jìn)行強(qiáng)度校核，鍵的材料按標(biāo)準(zhǔn)規(guī)定采用抗拉強(qiáng)度的鋼，常用45鋼。 本設(shè)計(jì)中的鍵均為減速器自帶的鍵，即普通圓頭A型。 驗(yàn)證電機(jī)軸上的轉(zhuǎn)動(dòng)慣量 （3.7） 電機(jī)的轉(zhuǎn)子慣量為 所以選取合適 （3.8） 在確定了轉(zhuǎn)動(dòng)慣量之后，就要進(jìn)行軸的具體尺寸確定： 實(shí)心軸的材料均選用45號(hào)鋼，查表知軸的許用扭剪應(yīng)力[] = 30MPa，由許用應(yīng)力確定的系數(shù)為C=120。 此軸傳遞扭矩T1=15N.m n1=30r/min P1=400w （3.9） 因此與電機(jī)相連的軸直徑必須大于28.5mm。 畢業(yè)設(shè)計(jì)（論文）獨(dú)創(chuàng)性聲明