1、 英文原文Wheel gears spreading to move is a the most wide kind of the application spreads to move a formin the modern machine. Its main advantage BE:The. spreads to move to settle, work than in a moment steady, spread to move accuratecredibility, can deliver space arbitrarily sport and the motive of the

2、 of two stalks；Power and speedscope applies are wide； spreads to move an efficiency high, =8； work is dependable, service life long； Outline size outside the is small, structure tightly packed.The wheel gear constituted to ；from wheel gear, stalk, bearings and box body decelerates a machine,

3、 useding for primemoverand work machine or performance organization of, have already matched to turn soon and delivera function of turning , the application is extremely extensive in the modern machine. Local deceleration machine much with the wheel gear spread to move, the pole spread tomove for lo

4、rd, but widespread exist power and weight ratio small, or spread to move ratio big butthe machine efficiency lead a low problem.There are also many weaknesses on material qualityand craft level moreover, the especially large deceleration machines problem is more outstanding,the service life isnt lon

5、g.The deceleration machine of abroad, with Germany, Denmark and Japanbe placed in to lead a position, occupying advantage in the material and the manufacturing craftspecially, decelerating the machine work credibility like, service life long.But it spreads to move aform to still take settling stalk

6、wheel gear to spread to move as lord, physical volume and weightproblem, dont also resolve likeThe direction which decelerates a machine to is the facing big power and spread to moveratio, small physical volume, high machine efficiency and service life to grow greatly nowadaysdevelops.Decelerating t

7、he connecting of machine and electric motor body structure is also theform which expands strongly, and have already produced various structure forms and variousproducts of power model numbers.Be close to ten several in the last yearses, control a technicaldevelopment because of the modern calculator

8、 technique and the number, make the machineprocess accuracy, process an efficiency to raise consumedly, pushed a machine to spread thediversification of movable property article thus, the mold piece of the whole machine kit turns,standardizing, and shape design the art turn, making product more fine

9、, the beauty turns.Become a set a machine material in 21 centuries medium, the wheel gear is still a machine tospread a dynamic basic parts.CNC tool machine and the craft technical development, pushed amachine to spread to move structure to fly to develop soon.Be spreading to move the electronicscon

10、trol, liquid in the system design to press to spread to move, wheel gear, take the mixture ofchain to spread to move, will become become soon a box to design in excellent turn to spread tomove a combination of direction.The academics that is in spread move the design crosses, will become new spread

11、a movable property article the important trend of the development.Essential character：Reduction gear、 Bearing 、gear 、mechanical driveSummaryThis time graduate the design to have the contents a to design concerning the machine thatdecelerate the complets system.Decelerating the machine is a kind of f

12、rom close to move in the rigid wheel gear in the hull isan independent complete organization .Pass thisa design can then the first step controls generalsimple a set of complete designs step and methods of the machine.This time graduate the design to introduce the type function of the deceleration ma

13、chine andconstitute the etc. primarily , made use of all.directionsly learned the knowledge .Such as:Machinegraphics ,the metals material craft learns the theories knowledge that business trip etc.alreadylearn. In actual production can analysis definitely reach agreement .The general type thatdecele

14、rate the machine has:The cylinder wheel gear decelerates the machine ,cone wheel geardecelerates the machine ,wheel gear.cochlea pole decelerates the machine ,stalk park typedecelerates machine ,assembles type decelerate machine ,couplet type decelerate machine ,couplettype decelerate machine .Furth

15、er educated in this time design independent ability that engineering design, set up theright design thought controls the in common use machine spare parts ,the machine spread to movethe device with the simple machine design of method with step ,the consideration that requestsynthesize usage the requ

16、est of economic craft etc . make sure the reasonable design project .Key phrase: reducer rigidity technolic components/zeroporatPrecent/projectPlanetary gear reducer gear reducer than the normal small size, light weight, high efficiency andtransmission power range, etc, widely applied gradually. At

17、the same time its drawbacks are:material quality, complex, high precision manufacturing, more difficult to install, design complexcalculations than the average speed reducer. but on the planet as people drive technology furtherin-depth understanding and knowledge as well as the introduction of forei

18、gn planetarytransmission and absorption of technology to drive the structure and contain its way are constantlyimproving, and continuously improve the level of production technology, can produce a betterplanetary gear reducer.According to a general load of gear strength, geometric dimensions of the

19、design calculation,and then to carry out transmission ratio conditions, concentric condition, the assembly conditions,design and calculation of the adjacent conditions, thanks to the number of planetary geartransmission, also must be contained institutions and the design of floating volume calculati

20、on.Planetary gear drive according to the composition of basic enough pieces can be divided into:2KH, 3K, and KHV are three. If the meshing of gears by the way, can be divided into: NGW-type,NN-based, WW-type, WGW type, NGWN type and N-type and so on. I designed planetary gear is2KH NGW planetary tra

21、nsmission type. What is the ball screw?So that the movement of objects, generally speaking, the movement will need to generatepower, directly or indirectly through other organizations to convey to the Department of the finalmovement. Case of the automobile, gasoline engine, due to the combustion pis

22、ton to move up anddown, and through intermediaries ultimately delivered to the wheels to make it happen rotarymotion.Todays world, able to represent the mechanical and plant a variety of sports organizations,we can say without exception, have some form of motor conduction institutions. Ball screw is

23、rotary motion into linear motion, or linear motion into rotary motion of the most reasonableproduct. ball screw specialties1, compared with the sliding torque of ball screw 1 / 3As the ball screw of the screw shaft and the wire between the mother doing a lot of ballrolling motion, so the movement ca

24、n get higher efficiency. And compared to the last slide ballscrew drive torque to 1 / 3 of the following, that is required to achieve the same results of dynamicmovement to use the scroll ball screw 1 / 3. Was helpful in saving.2, high precision to ensureBall screw is made in Japan De mechanical dev

25、ice worlds highest level of coherenceproduced, especially in research and cutting, assembly, Jian Chage processes of the factoryenvironment, the temperature humiditya strictly controlled quality managementproceYouyuwanshan system so that accuracy can be fully guaranteed.3, micro-feed mayAs the ball

26、screw is the use of ball movement, so a very small starting torque, does not appearas a creeping phenomenon of sliding movement can ensure accurate micro-feed.4, no backlash, high rigidityBall screw can be added to the pressure, the pressure due to the axial clearance can reachnegative values, and t

27、hen get a higher rigidity (within the ball screw ball through to add to thepressure in actual use mechanical devices, because of ball The repulsion can increase the rigidityof the Department of silk mother).5, high-speed feed mayBall screw, sport, high efficiency, small heat, so can achieve high-spe

28、ed feed (Sports).First:what is reducerReducer is a dynamic communication agencies, the use of gear speed converters, motorrotational speed reducer to the Rotary to be few, and have greater torque institutions.The reducer role1) velocity at the same time increase the output torque, torque output rati

29、o by motor output byslowdown, 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 deceleration than reduced to the square. We can look at the General Motors has a value of inertia.The type of reducerGeneral helical

30、 gear reducer has reducer (including parallel shaft helical gear reducer, a wormreducer, bevel gear reducer, etc.), planetary gear reducer, Cycloid reducer, a worm reducer, aplanetary friction CVT mechanical machines.Common reducer1) worm reducer is the main characteristics of a reverse self-locking

31、 function, can be larger than aslowdown, input shaft and output shaft axis is not the same, nor in the same plane. But generallylarger, transmission efficiency is not high, the accuracy is not high.2) Harmonic Harmonic Drive reducer is controllable using flexible components to transfer elasticdeform

32、ation and dynamic movement, not volume, high precision, but the disadvantage is thatflexible wheel limited life, impatient shocks, rigidity and pieces of metal relatively poor. Not toohigh speed input.3) planetary reducer its comparative advantage is compact structure, the return gap small, highprec

33、ision, and have a long life span rated output torque can be done great. However, a priceslightly expensive, the requirements of parts before assembly1. Rolling cleaning with gasoline, kerosene other parts cleaning. All parts and Xiangbenna notallowed to have any impurities exist. Gear box and the in

34、ner wall (Worm), unprocessed surfacehas not been coated twice erosion-resistant oil paint, box has the outer surface coated primer andpaint color (color requested by host).2. Parts coated with a face wash after lubricantsSecond, the requirements of installation and adjustment1. Rolling installation

35、Rolling bearing inner ring should be installed at the shaft shoulder close togap must not pass 0.05 mm thick Cypriot feet. 2. Bearing axial clearance of the clearance can notbe adjusted bearings (such as deep groove ball bearings), axial clearance of 0.25 to 0.4 mm; theclearance adjustable bearing a

36、xial clearance numerical table. Click Tapered Roller Bearings axialclearance; angular contact ball bearing axial clearance3. Gear (Worm) meshing tooth space available Cypriot side foot of lead or pressure. Will be leadwire on the alveolar, and then turning gear and squash lead wire, measuring two te

37、eth side wascrushed lead wire thickness and the size of which is adjacent teeth.4. Tooth contact dot cylinder gear tooth contact Dot 2-10-4; bevel gear tooth contact Dot 2-11-4;Gearing contact Dot 2-12-4Third, seal requirements1. Box partition between the surface does not allow any pads filled, but

38、can be coated or waterglass sealant to ensure that the seal;2. Assembly, the bolt tightening box, before using 0.05 mm Cypriot-foot inspection Covers Blockwith me and between the sealing surface; 3. Shaft seal should stretch to smear grease. The seal should be installed in strict accordance withthe

39、requirementsForth, lubrication requirements1. Rationally determine the types of lubricants and greases and grades2. 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 the first time, the ope

40、ration ofoil-7 14 days, according to the situation can be after every 3 to 6 months for first oil.Fifth, the test requirements1. Empty operation: at rated speed is, anti-running 1 to 2 hours;2. Load test: at rated speed, rated load operation, the oil temperature balance to date. On the gearreducer,

41、requested the pool temperature is not more than 35 oC, bearing temperature rise no morethan 40 oC; the worm reducer, requested the pool temperature not more than 60 oC, bearingtemperature of not more than 50 oC;3. Entire testing process for the smooth operation, noise, not loosening the fixed link,

42、sealed, notwith theSixth, packaging and transportation requirements1. 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 notnecessarily listed, and sometimes also by other projects, mainly by the spec

43、ific designrequirements.Seventh. Technical requirements1. Assembly, all parts cleaning with kerosene, gasoline Rolling cleansing, while the existence ofany 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 n

44、ot exceedthe smallest of the four times;3. Used Tu-color dot test. Tooth high point of contact by not less than 40% of contact spots onteeth not less than 50 per cent. Can be used when necessary, grinding or scraping after grinding toimprove contacts;4. Bearing axial clearance should be adjusted: 40

45、 0.05 - 0.1 mm, 55 0.08 - 0.15 mm;5. Test reducer subdivision surface, the contact surface and seal, oil spills are not allowed.Split-Tu allowed to paint or water glass seal and allow the use of any filler;6. Engine lubricants to the contents N100 provisions height;Below I introduce our country redu

46、ction gear the development present situation Firs,tthe domestic reduction gear many by the gear drive, the worm drive primarily, but has thepower and the load ratiogenerallyis small,or velocityratiogreatand mechanicalefficiencyexcessivellyow question.Moreoveri,n the materialqualityand the technologi

47、callevelalsohasmany weakness, the large-scale reduction gear question is specially more prominent, the servicelife is not long.The domestic use large-scale reduction gear (above 500kw), many from overseas(for example Denmark, Germany and so on) imports The 60s start few tooth reduction gears andso o

48、n differencetransmissionc,ycloidpin gear transmissiono,vertone transmissionwhichproduces has the velocity ratio to be big, volume small, mechanical efficiency higher merit? .Buits transmission theory limit, cannot transmit the oversized power, the power all must be smallethan generally40kw. Because

49、in the transmissiotnheoreticalltyh,e technologicalleveland thematerial quality aspect has not broken through, therefore, has not been able fundamentally to sothe transmissiopnower in a big way, thevelocityratiobig,thevolume small,the weight light,mechanicalefficienchyighertheserequestsbasically.Th9e

50、0sinitiapleriod,the home appearsthree links (gear) the reduction gear, is one kind of outside stable motion gear drive reductionitmay realizethe greatvelocityratiot,ransmissiolnoad abilitiysalsobig.Itsvolume and theweight are all lighter than the dead axle speed reducer gear, the structure is simple

51、, the efficis also high.Becausethisreductiongear threeaxle parallelstructuret,hereforecaused thepower/volume (orweight)the ratioisstilslmall.Alsoitsinputaxisand the outputshafton theidentical spool thread, this do not have in the use many inconveniently. Not only Beijing Institof Technology develops

52、 in successful stable motion speed reducer gear to have outside threelink reduction gear merit, but also has the big power/weight (or volume) the ratio, as well as tinput axis and the outputshafton identicaslpool threadmerit,is at the domestic leadingposition.Thehome has the minoritycollegeand the f

53、actoryand mining enterprisdeoes theresearch work to in stable motion gear drive certain principles, has published some research papin has done some work using the cycloidal tooth crop rotation stable motion reduction gear.Second, the stablemotion speed reducergear principloef work synopsis,the stabl

54、emotionspeed reducer gear is refers to in a counter gear transmission, a gear in the stable motion geneactuationmean planeparallemlotion,meshing throughtoothprofilebetween,actuatesanothertooth crop rotation dead axle to decelerate the rotation, the realization reduction gear functiostable motion gen

55、erator may use the parallelogram organization, either sine organization or crosslide organization.This achievement uses the parallelogram organization to take the stable motiogenerator. The stable motion generator may be the hypothesized use parallelogram organization,also may be the entity use para

56、llelogram organization.Has the practical value stable motion gearmechanism forin countergear organizationt,hereforemay divideintothe internatloothcroprotation stable motion movement and the external tooth crop rotation stable motion movement twokind of situations.Outsitdhe stablemotion gear reductio

57、norganizationi,tsinternatloothcroprotation stable motion movement, actuates the external gear and makes the deceleration rotationoutput.This organization also calls three links (gear) the reduction gear. As a result of the in tooth crop rotation stable motion, two crank centers establish outside the

58、 annular gear tooth ring,therefore its size is not compact, cannot solve the volume major problem.? In stable motion gearreduction, its external tooth crop rotation stable motion movement, actuation internal tooth croprotation deceleration rotation output.As a result of the external tooth crop rotat

59、ion stable motion,two crank centers can establish in the external gear tooth ring, reduced the organization overallsize greatly. Because in stable motion gear mechanism transmission efficiency high, volume small,input output coaxial line, therefore by widespread application prospect.Third, this proj

60、ect technical characteristic and key technologies? 1. this project technicalcharacteristics, in this new stable motion speed reducer gear and domestic and foreign had thespeed reducer gear compares, has the following characteristic: (1) velocity ratio scope is big, getsup from I=10, may reach most g