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1、<p><b> 什么是減速器</b></p><p> 減速器是一種動(dòng)力傳達(dá)機(jī)構(gòu),利用齒輪的速度轉(zhuǎn)換器,將馬達(dá)的回轉(zhuǎn)數(shù)減速到所要的回轉(zhuǎn)數(shù),并得到較大轉(zhuǎn)矩的機(jī)構(gòu)。1、減速器的作用 1)降速同時(shí)提高輸出扭矩,扭矩輸出比例按電機(jī)輸出乘減速比,但要注意不能超出減速器額定扭矩。 2) 減速同時(shí)降低了負(fù)載的慣量,慣量的減少為減速比的平方。大家可以看一下一般電機(jī)都有一個(gè)慣
2、量數(shù)值。2、減速器的種類 一般的減速器有斜齒輪減速器(包括平行軸斜齒輪減速器、蝸輪減速器、錐齒輪減速器等等)、行星齒輪減速器、擺線針輪減速器、蝸輪蝸桿減速器、行星摩擦式機(jī)械無(wú)級(jí)變速機(jī)等等。3、常見(jiàn)減速器 1) 蝸輪蝸桿減速器的主要特點(diǎn)是具有反向自鎖功能,可以有較大的減速比,輸入軸和輸出軸不在同一軸線上,也不在同一平面上。但是一般體積較大,傳動(dòng)效率不高,精度不高。 2) 諧波減速器的諧波傳動(dòng)是利用柔性元件可控的
3、彈性變形來(lái)傳遞運(yùn)動(dòng)和動(dòng)力的,體積不大、精度很高,但缺點(diǎn)是柔輪壽命有限、不耐沖擊,剛性與金屬件相比較差。輸入轉(zhuǎn)速不能太高。 3) 行星減速器其優(yōu)點(diǎn)是結(jié)構(gòu)比較緊湊,回程間隙小、精度較高,使用壽命很長(zhǎng),額定輸出扭矩可以做的很大。但價(jià)格略</p><p> 2.軸承軸向游隙 對(duì)游隙不可調(diào)整的軸承(如深溝球軸承),其軸向游隙為0.25~0.4mm;對(duì)游隙可調(diào)整 的軸承軸向游隙數(shù)值見(jiàn)表。點(diǎn)擊查看圓錐滾子軸承軸向
4、游隙;角接觸球軸承軸向游隙 3.齒輪(蝸輪)嚙合的齒側(cè)間隙 可用塞尺或壓鉛法。即將鉛絲放在齒槽上,然后轉(zhuǎn)動(dòng)齒輪而壓扁鉛絲,測(cè)量?jī)升X側(cè)被 壓扁鉛絲厚度之和即為齒側(cè)的大小?!?4.齒面接觸斑點(diǎn)圓柱齒輪齒面接觸斑點(diǎn)2-10-4;圓錐齒輪齒面接觸斑點(diǎn)2-11-4;蝸桿傳動(dòng)接觸斑點(diǎn)2-12-4 三、密封要求 1.箱體剖分面之間不允許填任何墊片,但可以涂密封膠或水玻璃以保證密封; 2.裝配時(shí),在擰緊箱體螺
5、栓前,應(yīng)使用0.05mm的塞尺檢查箱蓋和箱座結(jié)合面之間的密封性; 3.軸伸密封處應(yīng)涂以潤(rùn)滑脂。各密封裝置應(yīng)嚴(yán)格按要求安裝四、潤(rùn)滑要求 1.合理確定潤(rùn)滑油和潤(rùn)滑脂類型和牌號(hào) 2.軸承脂潤(rùn)滑時(shí),潤(rùn)滑脂的填充量一般為可加脂空間的1/2~2/3?!?3.潤(rùn)滑油應(yīng)定期更換,新減速器第一次使用時(shí),運(yùn)轉(zhuǎn)7~14天后換油,以后可以根據(jù)情況每隔3~6個(gè)月?lián)Q一次油。五、試驗(yàn)要求 </p><p&
6、gt; 八、下面我介紹我國(guó)減速器的發(fā)展現(xiàn)狀</p><p> ?。ㄒ唬?、國(guó)內(nèi)的減速器多以齒輪傳動(dòng)、蝸桿傳動(dòng)為主,但普遍存在著功率與重量比小,或者傳動(dòng)比大而機(jī)械效率過(guò)低的問(wèn)題。另外,材料品質(zhì)和工藝水平上還有許多弱點(diǎn),特別是大型的減速器問(wèn)題更突出,使用壽命不長(zhǎng)。國(guó)內(nèi)使用的大型減速器(500kw以上),多從國(guó)外(如丹麥、德國(guó)等)進(jìn)口。60年代開(kāi)始生產(chǎn)的少齒差傳動(dòng)、擺線針輪傳動(dòng)、諧波傳動(dòng)等減速器具有傳動(dòng)比大,體積小、機(jī)
7、械效率高等優(yōu)點(diǎn)?。但受其傳動(dòng)的理論的限制,不能傳遞過(guò)大的功率,功率一般都要小于40kw。由于在傳動(dòng)的理論上、工藝水平和材料品質(zhì)方面沒(méi)有突破,因此,沒(méi)能從根本上解決傳遞功率大、傳動(dòng)比大、體積小、重量輕、機(jī)械效率高等這些基本要求。90年代初期,國(guó)內(nèi)出現(xiàn)的三環(huán)(齒輪)減速器,是一種外平動(dòng)齒輪傳動(dòng)的減速器,它可實(shí)現(xiàn)較大的傳動(dòng)比,傳遞載荷的能力也大。它的體積和重量都比定軸齒輪減速器輕,結(jié)構(gòu)簡(jiǎn)單,效率亦高。由于該減速器的三軸平行結(jié)構(gòu),故使功率/體積
8、(或重量)比值仍小。且其輸入軸與輸出軸不在同一軸線上,這在使用上有許多不便。北京理工大學(xué)研制成功的"內(nèi)平動(dòng)齒輪減速器"不僅具有三環(huán)減速器的優(yōu)點(diǎn)外,還有著大的功率/重量(或體積)比值,以及輸入軸和輸出軸在同一軸線</p><p> (二)、平動(dòng)齒輪減速器工作原理簡(jiǎn)介,平動(dòng)齒輪減速器是指一對(duì)齒輪傳動(dòng)中,一個(gè)齒輪在平動(dòng)發(fā)生器的驅(qū)動(dòng)下作平面平行運(yùn)動(dòng),通過(guò)齒廓間的嚙合,驅(qū)動(dòng)另一個(gè)齒輪作定軸減速轉(zhuǎn)動(dòng),實(shí)
9、現(xiàn)減速傳動(dòng)的作用。平動(dòng)發(fā)生器可采用平行四邊形機(jī)構(gòu),或正弦機(jī)構(gòu)或十字滑塊機(jī)構(gòu)。本成果采用平行四邊形機(jī)構(gòu)作為平動(dòng)發(fā)生器。平動(dòng)發(fā)生器可以是虛擬的采用平行四邊形機(jī)構(gòu),也可以是實(shí)體的采用平行四邊形機(jī)構(gòu)。有實(shí)用價(jià)值的平動(dòng)齒輪機(jī)構(gòu)為內(nèi)嚙合齒輪機(jī)構(gòu),因此又可以分為內(nèi)齒輪作平動(dòng)運(yùn)動(dòng)和外齒輪作平動(dòng)運(yùn)動(dòng)兩種情況。外平動(dòng)齒輪減速器構(gòu),其內(nèi)齒輪作平動(dòng)運(yùn)動(dòng),驅(qū)動(dòng)外齒輪并作減速轉(zhuǎn)動(dòng)輸出。該機(jī)構(gòu)亦稱三環(huán)(齒輪)減速器。由于內(nèi)齒輪作平動(dòng),兩曲柄中心設(shè)置在內(nèi)齒輪的齒圈外部
10、,故其尺寸不緊湊,不能解決體積較大的問(wèn)題。內(nèi)平動(dòng)齒輪減速,其外齒輪作平動(dòng)運(yùn)動(dòng),驅(qū)動(dòng)內(nèi)齒輪作減速轉(zhuǎn)動(dòng)輸出。由于外齒輪作平動(dòng),兩曲柄中心能設(shè)置在外齒輪的齒圈內(nèi)部,大大減少了機(jī)構(gòu)整體尺寸。由于內(nèi)平動(dòng)齒輪機(jī)構(gòu)傳動(dòng)效率高、體積小、輸入輸出同軸線,故由廣泛的應(yīng)用前景。</p><p> ?。ㄈ?、本項(xiàng)目的技術(shù)特點(diǎn)與關(guān)鍵技術(shù)</p><p> 1.本項(xiàng)目的技術(shù)特點(diǎn),本新型的"內(nèi)平動(dòng)齒輪減速器
11、"與國(guó)內(nèi)外已有的齒輪減速器相比較,有如下特點(diǎn):(1)傳動(dòng)比范圍大,自I=10起,最大可達(dá)幾千。若制作成大傳動(dòng)比的減速器,則更顯示出本減速器的優(yōu)點(diǎn)。(2)傳遞功率范圍大:并可與電動(dòng)機(jī)聯(lián)成一體制造。(3)結(jié)構(gòu)簡(jiǎn)單、體積小、重量輕。比現(xiàn)有的齒輪減速器減少1/3左右。(4)機(jī)械效率高。嚙合效率大于95%,整機(jī)效率在85%以上,且減速器的效率將不隨傳動(dòng)比的增大而降低,這是別的許多減速器所不及的。 (5)本減速器的輸入軸和輸出軸是在同一軸
12、線上。本減速器與其它減速器的性能比較見(jiàn)表1。因缺少數(shù)據(jù),表中所列的各減速器的功率/重量比是最優(yōu)越的。各類減速器比較 型號(hào) 功率(kw) 減速比 質(zhì)量(kg) QI-450 93 31.5 1820 ZSY-250 95 31.5 540 NGW-92 88.1 31.5 577 SEW(德國(guó)) 90 28.61 1300 NP-100? 100 30 400 注:NP-100為內(nèi)平動(dòng)齒輪減速器,SEW減速器的質(zhì)量含電機(jī)。2.本項(xiàng)目的關(guān)鍵
13、技術(shù)。由圖2可知,"內(nèi)平動(dòng)齒輪減速器"是由內(nèi)齒輪Z2、外齒輪Z1和平行四邊形機(jī)構(gòu)組</p><p> Mineral product monorail reduction gear synopsis</p><p> First:what is reducer</p><p> Reducer is a dynamic communicat
14、ion agencies, the use of gear speed converters, motor rotational speed reducer to the Rotary to be few, and have greater torque institutions. </p><p> The reducer role 1) velocity at the same time increas
15、e the output torque, torque output ratio by motor output by slowdown, but the attention should be paid to exceed the rated torque reducer. 2) the speed at the same time reduce the inertia load, the inertia of decelerati
16、on than reduced to the square. We can look at the General Motors has a value of inertia. The type of reducer General helical gear reducer has reducer (includ
17、ing parallel shaft helical gear reducer, a worm reducer,</p><p> Second, the requirements of installation and adjustment 1. Rolling installation Rolling bearing inner ring should be installed at the shaft
18、shoulder close to gap must not pass 0.05 mm thick Cypriot feet. 2. Bearing axial clearance of the clearance can not be adjusted bearings (such as deep groove ball bearings), axial clearance of 0.25 to 0.4 mm; the clearan
19、ce adjustable bearing axial clearance numerical table. Click Tapered Roller Bearings axial clearance; angular contact ball bearing axial cl</p><p> Third, seal requirements 1. Box partition between the sur
20、face does not allow any pads filled, but can be coated or water glass sealant to ensure that the seal; 2. Assembly, the bolt tightening box, before using 0.05 mm Cypriot-foot inspection Covers Block with me and between
21、the sealing surface; 3. Shaft seal should stretch to smear grease. The seal should be installed in strict accordance with the requirements </p><p> Forth, lubrication requirements 1. Rationally determ
22、ine the types of lubricants and greases and grades 2. Bearing lubrication fat, grease filled in the general Fatliquor space can be 1 / 2 to 2 / 3. 3. Lubricants should be regularly replaced, the new reducer used for th
23、e first time, the operation of oil-7 ~ 14 days, according to the situation can be after every 3 to 6 months for first oil. </p><p> Fifth, the test requirements 1. Empty operation: at rated speed is, a
24、nti-running 1 to 2 hours; 2. Load test: at rated speed, rated load operation, the oil temperature balance to date. On the gear reducer, requested the pool temperature is not more than 35 oC, bearing temperature rise no
25、more than 40 oC; the worm reducer, requested the pool temperature not more than 60 oC, bearing temperature of not more than 50 oC; 3. Entire testing process for the smooth operation, noise, not loosening the f</p>
26、<p> Sixth, packaging and transportation requirements 1. Protruding shaft and its annex should Oiler packaging; 2. Handling, lifting may not use screw rings and lug all of the above technical requirements are n
27、ot necessarily listed, and sometimes also by other projects, mainly by the specific design requirements. </p><p> Seventh. Technical requirements 1. Assembly, all parts cleaning with kerosene, gasoline
28、 Rolling cleansing, while the existence of any debris. Oil is not painted wall corrosion coatings twice; 2. Backlash with lead wire mesh test of not less than 0.16 mm, lead wire Backlash may not exceed the smallest of t
29、he four times; 3. Used Tu-color dot test. Tooth high point of contact by not less than 40% of contact spots on teeth not less than 50 per cent. Can be used when necessary, grinding or scrapin</p><p> Below
30、 I introduce our country reduction gear the development present situation</p><p> First, the domestic reduction gear many by the gear drive, the worm drive primarily, but has the power and the load ratio ge
31、nerally is small, or velocity ratio great and mechanical efficiency excessively low question.Moreover, in the material quality and the technological level also has many weakness, the large-scale reduction gear question i
32、s specially more prominent, the service life is not long.The domestic use large-scale reduction gear (above 500kw), many from overseas (for example Denmark,</p><p> Second, the stable motion speed reducer g
33、ear principle of work synopsis, the stable motion speed reducer gear is refers to in a counter gear transmission, a gear in the stable motion generator actuation mean plane parallel motion, meshing through tooth profile
34、between, actuates another tooth crop rotation dead axle to decelerate the rotation, the realization reduction gear function.The stable motion generator may use the parallelogram organization, either sine organization or
35、cross slide organiz</p><p> Third, this project technical characteristic and key technologies? 1. this project technical characteristics, in this new " stable motion speed reducer gear " and domes
36、tic and foreign had the speed reducer gear compares, has the following characteristic: (1) velocity ratio scope is big, gets up from I=10, may reach most greatly several thousand.If manufactures the great velocity ratio
37、the reduction gear, then demonstrates this reduction gear the merit.(2) transmission power scope is big: And may</p><p> Graduation design task First, a design Monorail Driver Design reducer </p>
38、<p> Second, the design of the original data 1 Monorail drive reducer Power Rating: 7.5 KW; 2 Monorail reducer drive the total transmission ratio: 15 around; 3 Monorail reducer drive car driven by the side of t
39、he output shaft from the race distance of not more than 200 mm; 4 Monorail reducer drive the total length of less than 420 mm, the width is not more than 450 mm and the total height of not more than 690 mm; </p>
40、<p> Third, the equipment and the working environment This can be used to mine underground, open-air, dust, humidity, air quality, bad comparison bad work environment, and the operational requirements of a safe s
41、pace. Fourth, the design requirements To meet the application requirements under the premise that the minimum cost of manufacturing. From the following aspects considered; (L) to streamline the shape of each parts,
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