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s should be regularly replaced, the new reducer used for the first time, the operation of oil7 ~ 14 days, according to the situation can be after every 3 to 6 months for first oil. Fifth, the test requirements 1. Empty operation: at rated speed is, antirunning 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 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 fixed link, sealed, not with the 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 not necessarily listed, and sometimes also by other projects, mainly by the specific design requirements. Seventh. Technical requirements 1. 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 of not less than mm, lead wire Backlash may not exceed the smallest of the four times。 3. Used Tucolor 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 contacts。 4. Bearing axial clearance should be adjusted: φ40 mm, φ55 mm。 5. Test reducer subdivision surface, the contact surface and seal, oil spills are not allowed. SplitTu 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 reduction gear the development present situation First, the domestic reduction gear many by the gear drive, the worm drive primarily, but has the power and the load ratio generally is small, or velocity ratio great and mechanical efficiency excessively low , in the material quality and the technological level also has many weakness, the largescale reduction gear question is specially more prominent, the service life is not domestic use largescale reduction gear (above 500kw), many from overseas (for example Denmark, Germany and so on) imports The 6039。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, cannot 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, the velocity ratio big, the volume small, the weight light, mechanical efficiency higher these requests 9039。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, transmission load ability is also big. Its volume and the weight are all lighter than the dead axle speed reducer gear, the structure is simple, the efficiency is also this reduction gear three axle parallel structure, therefore caused the power/volume (or weight) the ratio is still its input axis and the output shaft on the identical spool thread, this do not have in the use many inconveniently. Not only Beijing Institute of Technology