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Reducers for beam pumping units | prev | next | back to the list
Cylindrical three-stage reducers for beam pumping units such as Ц3НК-280, Ц3НК-355, Ц3НК-450, Ц3НК-500
Purpose.
   Special standard sizes Ц3НК-280К; Ц3НК- 355К; Ц3НК-450С, -450М; Ц3НК-500С, -500К, -500М cylindrical three-stage reducers with Novikov's gear , with friction rings intended for drives of beam pumping units.

Applying conditions of reducers.
  • Alternating-load;
  • Shaft's rotating in one direction for redusers with an index "С" (with plane bearings on the target shaft), obligatory sense of rotation counter-clockwise, as shown in the constructed drawing of a front view of a reducer;
  • Shaft's rotating oreverse for redusers with an index "K" and "М";
  • Rotating speed of the source shaft no more than 750 rev/min.;
  • Climatic performance: У1 GOST 15150 -69, the reducers also can be maintained in conditions of a cold climate macro-climatal of area I2 on GOST 16350-80.

   For example conventional sign's recording for reduser Ц3НК-450С with interaxal distance 450 mm, with plane bearings on the target shaft, gear ratio 63, climatic performances У1: Ц3НК-450-63 У1 ТУ2-ИБГУ-03-93.
   Same, with an antifriction bearing on the target shaft, gear ratio 90: Ц3НК-450К-90 У1 ТУ2-ИБГУ-03-93.
   Same, with a strengthened output shaft on antifriction bearings for single-arm of beam pumping units such as Марк-II, gear ratio 125: Ц3НК-450М-125 У1 ТУ2-ИБГУ-03-93.
Fig.1 Dimensional and mounting the sizes.
Tab.1 Basic dimensions and mounting sizes.
Standard size of reducers a a1 a2 a3 a4 L L1 L2 L3 l l1 l2 l3 l4 l5 l5/2 l6
Ц3НК-280 117,45 125 180 280 42,75 953 1108 700 1070 312 302 302 132 80 58 29 80
Ц3НК-355 138,56 160 224 355 80 1215 1352 890 1300 395 383 354 165 110 82 41 82
Ц3НК-450 180 - 280 450 - 1470 1592 1110 1540 485 428 403
Ц3НК-500 200 - 315 500 - 1630 1976 1120 1912 533 509 471 203 140 105 52,5 105
Table 1 prolongation
Standard size of reducers l7 l7/2 H H1 H2 A A1 A2 A3 A4 A5 B B1 n d d1
Ц3НК-280 58 29 558 285 35 - 340 260 - - 340 - 400 6 26 35
Ц3НК-355 54 27 678 340 40 - 440 250 250 260 - - 500 8 50
Ц3НК-450 864 440 50 710 510 330 330 330 - 790 590 32 50
Ц3НК-500 70 35 945 470 60 775 600 300 375 315 - 855 680 70
Fig.2
Tab.2 Dimensional and mounting sizes of output shaft.
Standard size of reducers l d b t
Ц3НК-280К 132 85 22 9
Ц3НК-355К 165 105 28 10
Ц3НК-450С 165 120 32 10
Ц3НК-450К 165 120 32 11
Ц3НК-450М 165 160 40 13
Ц3НК-500С 230 160 40 13
Ц3НК-500К 230 160 40 13
Ц3НК-500М 230 200 40 13
Fig.3 Conical ends of output shaft.
Tab.3 Sizes of conical ends of output shaft.
Standard size of reducers d2* d3 d4 d5 b b1 h h1 t t1 t2
Ц3НК-280 85 32,1 M20x1,5 6 22 6 34,6 9
Ц3НК-355 105 45,9 47,3 M36x3 12 28 8 11 48,9 51,3 10
Ц3НК-450 120 32 11
Ц3НК-500 160 64,75 66,5 M48x3 18 40 11 16 68,75 72,5 13


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