中英文文献翻译浅谈减速器

1、mineral product monorail reduction gear synopsis first:what is reducerreducer is a dynamic communication agencies, the use of gear speed converters, motor rotational speed reducer to the rotary to be few, and have greater torque institutions.the reducer role1) velocity at the same time increase the

2、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 deceleration than reduced to the square. we can look at the general motors has a value of inertia.

3、the type of reducergeneral helical gear reducer has reducer (including parallel shaft helical gear reducer, a worm reducer, bevel gear reducer, etc.), planetary gear reducer, cycloid reducer, a worm reducer, a planetary friction cvt mechanical machines.common reducer1) worm reducer is the main chara

4、cteristics of a reverse self-locking function, can be larger than a slowdown, input shaft and output shaft axis is not the same, nor in the same plane but generally larger, transmission efficiency is not high, the accuracy is not high2) harmonic harmonic drive reducer is controllable using flexible

5、components to transfer elastic deformation and dynamic movement, not volume, high precision, but the disadvantage is that flexible wheel limited life, impatient shocks, rigidity and pieces of metal relatively poor. not too high speed input.3) planetary reducer its comparative advantage is compact st

6、ructure, the return gap small, high precision, and have a long life span rated output torque can be done great. however, a price slightly expensive, the requirements of parts before assembly1. rolling cleaning with gasoline, kerosene other parts cleaning all parts and xiangbcnna not allowed to have

7、any impurities exist. gear box and the inner wall (worm), unprocessed surface has not been coated twice erosion-resistant oil paint, box has the outer surface coated primer and paint color (color requested by host).2. parts coated with a face wash after lubricantssecond，the requirements of installat

8、ion and adjustmentl rolling installation rolling bearing inner ring should be installed at the shaft 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 t

9、o 0.4 mm; the clearance adjustable bearing axial clearance numerical table. click tapered roller bearings axial clearance; angular contact ball bearing axial clearance3. gear (worm) meshing tooth space available cypriot side foot of lead or pressure will be lead wire on the alveolar, and then turnin

10、g gear and squash lead wire, measuring two teeth side was crushed lead wire thickness and the size of which is adjacent teeth.4. tooth contact dot cylinder gear tooth contact dot 2104; bevel gear tooth contactdot 2-11-4; gearing contact dot 2-12-4third, seal requirements1 box partition between the s

11、urface 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 the sealing surface;3. shaft seal should stretch to smear grease. the seal shoul

12、d be installed in strict accordance with the 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 n

13、ew reducer used for the first time, the operation of oil-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 tempe

14、rature balance to date. on the gear reducer, requested the pool temperature is not more than 35 oc, bearing temperature rise no 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 o

15、peration, noise, not loosening the fixed link, sealed, not with 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 not necessarily listed, and some

16、times also by other projects, mainly by the specific design requirements.seventh, technical requirements1 assembly, all parts cleaning with kerosene, gasoline rolling cleansing, while the existence of any debris. oil is not painted wall corrosion coatings twice;2. backlash with lead wire mesh test o

17、f not less than 0.16 mm, lead wire backlash may not exceed the smallest of the 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 scraping after grinding to improve contac

18、ts;4. bearing axial clearance should be adjusted:(p40 0.05 - 0.1 mm,(p55 0.08 05 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 p

19、rovisions height;eighth,below i introduce our country reduction gear the development present situationfirst, the domestic reduction gear many by the gear drive, the wonn drive primarily, but has the power and the load ratio generally is small, or velocity ratio great and mechanical efficiency excess

20、ively low question.moreover, in the material quality and the technological level also has many weakness, the large-scale reduction gear question is specially more prominent, the service life is not long.the domestic use large-scale reduction gear (above 500kw), many from overseas (for example denmar

21、k, germany and so on) imports the 60's start few tooth reduction gears and so on difference transmission, cycloid pin gear transmission, overtone transmission which produces has the velocity ratio to be big, volume small, mechanical efficiency higher merit? .but its transmission theory limit, ca

22、nnot transmit the oversized power, the power all must be smaller than generally 40kw. because in the transmission theoretically, the technological level and the material quality aspect has not broken through, therefore, has not been able fundamentally to solve the transmission power in a big way, th

23、e velocity ratio big, the volume small, the weight light, mechanical efficiency higher these requests basically.the 90's initial period, the home appears three links (gear) the reduction gear, is one kind of outside stable motion gear drive reduction gear, it may realize the great velocity ratio

24、, transmission load ability is also big. its volume and the weight are all lighter than the dead axle speed reducer gear, the stmcture is simple, the efficiency is also high.because this reduction gear three axle parallel structure, therefore caused the power/volume (or weight) the ratio is still sm

25、all.also its input axis and the output shaft on the identical spool thread, this do not have in the use many inconvenien什y. not only beijing institute of technology develops in successful n stable motion speed reducer gear n to have outside three link reduction gear merit, but also has the big power

26、/weight (or volume) the ratio, as well as the input axis and the output shaft on identical spool thread merit, is at the domestic leading position.the home has the minority college and the factory and mining enterprise does the research work to in stable motion gear drive certain principles, has pub

27、lished some research paper, in has done some work using the cycloidal tooth crop rotation stable motion reduction gear.second, the stable motion speed reducer gear principle of work synopsis, the stable motion speed reducer gear is refers to in a counter gear transmission, a gear in the stable motio

28、n generator actuation mean plane parallel motion, meshing through tooth profile 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

29、cross slide organization.this achievement uses the parallelogram organization to take the stable motion generato匚 the stable motion generator may be the hypothesized use parallelogram organization, also may be the entity use parallelogram organization.has the practical value stable motion gear mecha

30、nism for in counter gear organization, therefore may divide into the internal tooth crop rotation stable motion movement and the external tooth crop rotation stable motion movement two kind of situations.outside the stable motion gear reduction organization, its internal tooth crop rotation stable m

31、otion movement, actuates the external gear and makes the deceleration rotation output.this organization also calls three links (gear) the reduction gea匸 as a result of the internal tooth crop rotation stable motion, two crank centers establish outside the annular gear tooth ring, therefore its size

32、is not compact, cannot solve the volume major problem.? in stable motion gear reduction, its external tooth crop rotation stable motion movement, actuation internal tooth crop rotation deceleration rotation output.as a result of the external tooth crop rotation stable motion, two crank centers can e

33、stablish in the external gear tooth ring, reduced the organization overall size greatly. because in stable motion gear mechanism transmission efficiency high, volume small, input output coaxial line, therefore by widespread application prospect.third, this project technical characteristic and key te

34、chnologies? 1. this project technical characteristics, in this new n stable motion speed reducer gear n and domestic and foreign had the speed reducer gear compares, has the following characteristic: (1) velocity ratio scope is big, gets up from 1=10, may reach most greatly several thousand.if manuf

35、actures the great velocity ratio the reduction gear, then demonstrates this reduction gear the merit.(2) transmission power scope is big: and may connect a body manufacture with the electric moto匚(3) structure simple, the volume small, the weight is light.reduces about 1/3 compared to the existing s

36、peed reducer gea匚(4) mechanical efficiency is high.95 (5) this reduction gear input axis and the output shaft are on the identical spool thread.this reduction gear see table 1 with other reduction gear performance comparison. because lacks the data, various reduction gears power/load ratio which in

37、the table arranges in order is most superior.? table 1? each kind of reduction gear comparison model power (kw) reduction gear ratio quality (kg) qi-450? 93 31.5 1820 zsy-250? 95 31.5 540 ngw-92 88.1 31.5 577 sew (germany)? 90 28.61 1300 np-100? 100 30 400 note: np-100 is in the stable motion speed

38、reducer gear, the sew reduction gear quality contains the electrical machinery.2 this project key technologies? may know by figure 2, in “stable motion speed reducer gear m is by annular gear z2, external gear z1 and the parallelogram organization combination becomes.its transmission principle is: t

39、he electrical machinery input rotary motion, the external tooth crop rotation parallel migration, its center of circle path is a circle, makes the dead axle rotation with it meshing annular gea匸 because external tooth crop rotation parallel migration, therefore name stable motion gear mechanism.the

40、gear parallel migration needs to have the auxiliary body help realization, may use (612) to sell the axis, the roller takes the hypothesized auxiliary stable motion organization, also may use the eccentric shaft to take the entity auxiliary stable motion organization.in the stable motion speed reduc

41、er gear key technologies and the essential craft are the composition parallelogram component size computation and the request processing precision, the gear teeth main parameter choice. these factors will all affect the transmission ability and the transmission quality.overall speaking, the group co

42、st reduction gear various spare parts all request to have the high precision, they will be deciding the reduction gear overall transmis3. this project survey this project has obtained the chinese practical new patent, the patent number: zl95227767.0? .? this project trial produced the first prototyp

43、e from 1995 (power 2.5kw, after velocity ratio 1=32), with some factory and mine cooperation, has one after another designed following several kind of different powers, the different velocity ratio reduction gear.(l) electrically operated on rollers gate uses the reduction gear, power 550w, velocity

44、 ratio 1=26, is united as one body with the electrical machinery.sion quality. (2) mixer uses the reduction gear, power 370w, velocity ratio 1=17.(3) some military goods use two kind of reduction gears, one kind of power 370w, velocity ratio 1=23.5; another kind of power 370w, velocity ratio 1=103 t

45、wo level of transmission reduction gea匚(4) steel mill large package rotary abutment reduction gear, power 7.5kw, velocity ratio 1=64.(5) steel mill table reduction gear, power 7.5kw, transmission 1=1 l in this patent foundation, has developed one kind of new ultra-large reduction gear, the power may reach 1 oookw, at present is developing subminiature (outlook size for a millimeter level) miniature reduction gea匚graduation design taskfirs