 Posted: Fri 2:16, 07 Jan 2011 Post subject: ugg italia Small number of teeth (Z = 3 and 5) sin |
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| Small number of teeth (Z = 3 and 5) single-arc gear hobbing
However, the viscosity of the oil level is an important indicator. Clearly, V> VO, still with 30 oil, the viscosity is low, difficult to form by the fluid film lubrication theory we have, according to a speed factor of the power relationship between the calculated values, the choice of HLN68TJ hydraulic oil as the lubrication of worm pay oil. The oil viscosity is 58 to 78 (30 oil is 27 ~ 33) of its stable performance, long hours, can reduce the wear and tear,ugg italia, lower temperature rise. The anti-wear, antioxidant, anti-rust, anti-emulsifying properties are better than 30 'oil o4.3 torque characteristics of the power machine machine cutter spindle speed y39 a total of seven I192155, 127 \, 47. \5. Where the minimum speed 11. . . = 47.5r /. ;, The maximum speed of I1. . -192r /. -. . Calculation speed (that is able to transfer full power of the minimum speed) to ni said nI; 64r /. After calculation, the results marked in the power torque characteristics map, shown in Figure 7. The figure shows the torque when n = 25r/132, nj when the torque is still only able to carry a power reduction, and the other parts suffer load has not changed, thus the other parts for machine tools has little influence . 4.4 arc using a single park to take n. Gear = 2St /. Ie v = 7.85m / -. . This is the recommended value than a much lower gear hobbing bed (fine roll for the 25-35m /. Rough roll> 20m /。;。),air jordans。 When the cutting speed is low, the (chip contraction coefficient K great clamor that the main change speed chip ‰ Figure 7 is big, large cutting resistance, on the tooth surface roughness and accuracy of even greater (see Figure  . Garden arc Gear soil knife rake angle Y = 0, the cutting gear generating method and cutting involute gear hob is different. with a convex concave Cutters Gear Hobbing, the hob tooth profile of the main part of Pr- section (see solid 9). This section is a forming method of cutting, and P points on the convex arc tooth root r of the cutting section of Park chewing generating method (cut by convex concave roller gear hob when it is entirely generating method), and rotary cutting involute profile compared to poor cutting conditions, tool wear serious, easy to produce vibration. let me plant purchased _ki67 single park arc gear hob (double A-) convex and concave teeth of the one sent to outside plant NT-coating. Figure 8y (% | h] Chen 9334.5 actual situation in machining processing and assembly number of hob wear y38 hobbing machine is running normally, no different park arc gear involute gear hob gear single garden often ordinary phenomena arc . processing after the inspection is completed the total number of convex concave tooth teeth z: 3,4,5,6, hob check to pay backlash worm gear table value is not z = 3z = 5z = 44Z = 427,8,9,10 punch and 0. 15 ~ 0.20 change, keep the original worm gear tooth surface state 5I544120.1O.1 India cut specifications () tooth surface roughness measurement tool path size of the number of amount of feed speed of the feed milling method Garden involute tooth arc drawing requirements : 63 measured tooth thickness measurement of tooth root garden or 2.5 normal line 3 ~ 4o.25mm/25r/rain climb milling 1.5 Actual: V5 ~ V6 assembly contacts all over the drawing requirements o.5 Note z (1) table coated tool wear are to the former, no grinding flank. (2) the involute gear wheel hardness with the Park arc. tool no coating. 5. Conclusion (1) park with a coated single arc in the y38 Gear hobbing machine hanging on the configuration speed rotary cutting wheel is ≥ 35,7 ... ... and a small number of teeth of gears, it applies to single and small batch production. (2) zDSH reducer is great potential for development of products, should be gradually promote the use of, the proposed China's machine tool industry can be developed as soon as possible while rolling the number of teeth and normal teeth cut into small multi-purpose gear hobbing. (3) should be carefully roll the knife tooth, bearing in mind the slender shaft due to be equipped with special gear hobbing workpiece fixture or retained long enough the first card. Bulletin of Xi'an Heavy Machinery Plant North less successful trial of new single-stage arc teeth gear reducer gear reducer is less Shaanxi Institute Professor Jiang Xuequan patent invention patent No. 88.2.2147.7.6, invention has won the fourth gold medal, has been listed as the Department of Electrical and ministry standard series. I plant in 1990, cooperation with Shaanxi Institute of trial of three teeth and two kinds of five-tooth gear 34 2DsH125 prototype, and in 1991 investment performance test on the end of March, and soon will be technical appraisal. less tooth gear reducer can be used to pay less to achieve a large transmission ratio. and the carrying capacity of the arc tooth involute puppet on. in the same carrying capacity and under the condition of the transmission ratio,ed hardy, in weight than the standard gear, a pair of gears can be reduced, thus significantly reducing the center distance,jordan shoes, light weight, low cost,ugg prezzo, save labor and material, and can use standard hob and general machining, with great spread value. (DONG Yu-xiang)
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