A certain number of computation that mechanical compressor function designs

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Instrument compressor function designs summary introduction large scale computer to do work mediumly quantity, advocate electric machinery power and flywheel drive inertia are decided really, on the base that uses little loose technology in research, summary gives handy formula to complete this one relatively complex operation, the save labour when the province, reliable and practical. Keyword machinery compressor does work quantity advocate moment of inertia of flywheel of electric machinery power is large an in doing work the quantity is a design cannot ignore important parameter of compressor of instrument of the sheet that shut type, double motive, this parameter is a few respects do work the summation of the quantity, at the same time with advocate the existence is particular concern between electric machinery, flywheel, operation is very complex. The article is on the foundation that researchs little loose technology, compressor the design does work mediumly quantity, advocate what electric machinery power moves inertia with flying cycle is affirmatory, use a kind of handy formula to complete this one relatively complex operation. This formula to journey of above of nominal force 2000kN, slide block of 400 ～ 1000mm shut type sheet was moved at 4 o'clock, double move or compressor of machinery of much connecting rod all applicable. The small loose compressor that carries pair of different types is like journey of nominal force, slide block, pressure journey, air cushion about parameter force and advocate the analytic computation of the parameter such as electric machinery power, basiccer and as identical as trival and formulary computation or close, the save labour when so this formula is saved, reliable and practical. Citing is expressed as follows (all be to introduce) of small loose product. The slide block outside the slide block inside KN600010000 of force of nominal of 400E4D800+500 of parameter E4S600E4S1000E4D600 ＋ 6000 ＋ 4000 inside the slide block outside slide block 5000 pressure of 8000 ＋ 613 　 of 　 of journey Mm131313 　 　 6 can use as most result quantity J1.

8 × 105*3.

7 × 1053.

8 × 1052.

× of 6 × 105*4 1053.

105 slide block of 7 × 660940 　 of journey Mm6001000940 　 Min of 690 travels time - 113 with 2010 ～ 1610 and 1510 with KN1000150010001500 of force of 15 air cushion advocate 88 　 of ／ of 60AC132 of ／ of ／ 50AC132AC90 of KWAC75 of electric machinery power note: * is result of trival and formulary computation, other a consideration is primary identical or close. In compressor design, it is the requirement according to the user undertakes designing commonly. Measure parameter to doing work, some users made a provision directly, so the value computation that presses a regulation. 1 compressor does work the 　 of 　 of PDS/KD 　 of ＋ of PBhB of computational E=Ph ＋ of the quantity (in 1) type: E -- what compressor needs to arise is the biggest make result amount, j; P -- nominal force (double move for inside) of force of slide block nominal, n; H -- pressure journey (double move for inside) of journey of slide block pressure, m(takes H=0 commonly.

013 ～ 0.

015m, or need to set) by user place; PB -- outside the nominal force of slide block, n; HB -- outside the pressure journey of slide block, m(takes HB=0 commonly.

006m, or need to set) by user place; PD -- air cushion force, n; KD -- coefficient of air cushion ability (take KD ＝ 6) commonly; S -- slide block journey (double move for inside) of slide block journey, m. When designing machine of force of odd dynamic pressure, the ＝ that press PB 0, HB=0 computation; The compressor that does not bring air cushion presses computation of PD ＝ P/6; Fall makings, long edge, forging to be able to press PD=0 computation with compressor. The 8000kN that with me plant design produces shuts type sheet moved compressor of machinery of much connecting rod to be at 4 o'clock exemple, nominal force P=8000kN, pressure journey H=13mm, s=800mm of slide block journey, 2000kN of ＝ of PD of air cushion force, travel time 10 ～ 18min - 1. Get E=8000 × 103 × 0.

2000 × of 013 ＋ 103 × 0.

8/6=3.

105 　 of 7 × (J) 2 advocate the affirmatory 　 of PH of electric machinery power (1) AC motor: (2) 　 　 (2) dc motive: (What compressor of 8000kN of 3) 　 　 uses is dc timing electric machinery, reason gets: Examine electric machinery sample book, anthology advocate electric machinery power is 158kW. The affirmatory 　 of GD2 of 3 flywheel moment of inertia (4)K ＝ 2Sk - 　 of S2k 　 　 (in 5) type: GD2 -- flywheel moment of inertia, kgm2(includes clutch driven, take the 15% or so) of GD2 commonly; N -- flywheel revolution, r/min; K -- the energy of flywheel is released rate, % ; Sk -- rate change is led (electromotor slippery difference leads) , % . Sheet uses compressor, take Sk=10.

5% ～ 15% , k=0.

199 ～ 0.

Plane of force of 278 　 double dynamic pressure, take Sk=15.

5% ～ 20% , k=0.

286 ～ 0.

When Sk of 36 　 　 exceeds 20% , compressor cycle time is lengthened, use dc timing electromotor or motor of the type that wind a string, ＝ extraction Sk 20.

5% ～ 30.

5% , k=0.

368 ～ 0.

When 517 　 use flywheel of drive of gearshift electric machinery, if ask low speed, high speed is made,do work identically quantity, need to increase the rate change rate when low speed, reduce number of minutely job journey at the same time. What 8000kN compressor uses is dc timing electric machinery, slippery poor rate is high, do work the flywheel moment of inertia of the quantity calculates as follows when contented low speed: 10min of time of the travel when low speed - 1 when, flying cycle counts N=155r/min, choose Sk=28.

8% , k=0.

492 　 by type (4) reachs: The driven that clutch includes in GD2 value, see figure below. According to user requirement, this compressor is in first are located in on the line repeatedly, and air cushion muscularity, bring about each computation so numerical value is great also. 2 factories produce classics and small loose compressor and Jinan compare with type product photograph, corresponding parameter is basic identical or close. CNC Milling CNC Machining