New generation of mechanical power VARIATORS

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New generation of mechanical power VARIATORS

  1. 1. New generation of mechanical power VARIATORS
  2. 2. Implementation <ul><li>Tractors </li></ul><ul><li>Agricultural machinery </li></ul><ul><li>Excavating machines </li></ul><ul><li>Cars, trucks and buses </li></ul><ul><li>Military machines </li></ul><ul><li>Load-lifting machines </li></ul><ul><li>Process equipment drives </li></ul><ul><li>Motor-variators </li></ul><ul><li>Power equipment </li></ul><ul><li>Mining equipment </li></ul><ul><li>Road-building machines </li></ul>
  3. 3. Working principle of a mechanical power variator <ul><li>Main principle : </li></ul><ul><li>Point A fixing of the shaft </li></ul><ul><li>(a detail 2) in the necessary </li></ul><ul><li>time in a proper place with </li></ul><ul><li>moving possibility of </li></ul><ul><li>other points. Points O and M </li></ul><ul><li>are a spinning ax of the </li></ul><ul><li>input (a detail 3) and the output </li></ul><ul><li>(a detail 2) shafts accordingly. </li></ul><ul><li>Distance О-М (further “ е ”) is </li></ul><ul><li>The eccentricity of a variator </li></ul><ul><li>and also can change over </li></ul><ul><li>the range from 0 to е max due </li></ul><ul><li>to the mutual crank twirls </li></ul><ul><li>(a detail 1) and the input shaft (a detail 3) </li></ul><ul><li>Transfer relationship of a variator I = (R+e)/e, where R – radius (distance M-N ) output shaft pitch line (a detail 2). Change of a transfer relationship i occurs at the expense of eccentricity change е . At е =0 the variator output shaft is not twirled at any turns of the input shaft. </li></ul><ul><li>The offered principle provides unaccented fixing of a point A and an output shaft uniform rotation. </li></ul>е O M Detail 2 Detail 3 А Detail 1 N
  4. 4. Transmissions’ characteristics Works with the greatest efficiency only in separate points. The characteristic of transmission with frictional variators Works effectively over the range speeds from Vmin to Vmax. Relation Vmax / Vmin = 3–6. EFFICIENCY more low, than in a mechanical step transmission. The characteristic of transmission with МPV Works effectively in a wide speed range. Vmax / Vmin is more than 1000. Works effectively in a repent regime. EFFICIENCY is commensurable with EFFICIENCY of a manual transmission. The characteristic of mechanical transmission Turns Moment The characteristic of ideal transmission
  5. 5. Areas of technical maintenance W kW Ultrahigh more than 500 High 100-500 Medium 10-100 Low 1-10 Ultralow less than 1 Ultralow Low Medium High Ultrahigh less than 10 10-200 200-3000 3000-10000 more than 10000 N turns / min Drive type MPV Hydraulic Wedge-belt Multidisc
  6. 6. Operational and technical advantages <ul><li>Possibility of installation with engines of various power, including more than 500 kW. </li></ul><ul><li>Effective work in a wide control range of speeds, Vmax / Vmin is more 1000. </li></ul><ul><li>Transferred twisting moment up to 100 к N *м. </li></ul><ul><li>High efficiency (92–95 %). </li></ul><ul><li>Possibility to work without the clutch. </li></ul><ul><li>Possibility of stable and long work on small target turns and the maximum loadings (a repent regime) . </li></ul><ul><li>Weight and size characteristics are in 1,5–2 times less than at comparable multistage gear reductors. </li></ul><ul><li>High durability of work due to the minimum contact loadings (σ k ≤ 15 kg/m 2 ) on transferring elements of MPV . </li></ul><ul><li>Simple manufacturing methods. </li></ul>
  7. 7. Comparison МPV with other types of variators Expected fuel economy at using МPV in comparison with other types of variators : in a usual regime , % 5 – 8 in a repent regime , % 30 – 40 Drive type Parameter MPV Hydraulic Multidisc Wedge-belt Efficiency , % 92-95 75-87 85-89 84-88 Kinematic range , Vmax / Vmin 1000 and more 3 6 5 Comparative metal consumption , % 70 100 95 93
  8. 8. Technical data of a class 1.4 tractors' automatic transmission controlled by М PV (adaptation) <ul><li>The maximum transferred power HP /к W 204/150 </li></ul><ul><li>Nominal rotational speed of the input shaft , min -1 1500 ± 200 </li></ul><ul><li>Max rotational speed of the input shaft , min -1 less 2200 </li></ul><ul><li>Rotational speed of the output shaft , min- 1 360 ± 50 </li></ul><ul><li>Min rotational speed of the output shaft , min -1 0 </li></ul><ul><li>Max rotational speed of the output shaft, min -1 525 </li></ul><ul><li>The maximum moment on the input shaft , N  м 600 </li></ul><ul><li>The maximum moment on the output shaft , N  м 2800 </li></ul><ul><li>Variator’s efficiency 0,94 – 0,96 </li></ul><ul><li>The maximum transmission ratio, N*m more than 1000 </li></ul><ul><li>The minimum transmission ratio, N*m 4,2-4,5 </li></ul><ul><li>Size , mm , less than length 565 </li></ul><ul><li>width 480 </li></ul><ul><li>height 390 </li></ul><ul><li>Weight , kg 15 0 ± 20 </li></ul>
  9. 9. Technical data of a class 1.4 tractors' automatic transmission controlled by М PV The maximum transferred power HP /к W 136/100 Nominal rotational speed of the input shaft , min -1 1700 Max rotational speed of the input shaft , min -1 less 2200 Rotational speed of the output shaft , min- 1 less 2200 Min rotational speed of the output shaft , min -1 0 The maximum moment on the input shaft , N  м 600 The maximum moment on the output shaft , N  м 1700 Variator’s efficiency 0,9 0– 0,9 4 Adjusting of turnovers of an output shaft Stepless, without a break of a power flow Control system drive gear Automatic (transition to a manual mode is possible)
  10. 10. General view of construction MPV
  11. 11. THE BASIC TECHNOLOGICAL PARAMETERS AT MANUFACTURE МСВ Materials used for manufacture ст.40, ст.45, ст.40Х, ст.20 Degree of accuracy of details manufacture 7 Degree of accuracy of cones manufacture 8 Hardness of details HRC – 28 ,0 -38,5 HRC э – 45,0-57,0 Case hardening of details h = 0,7-1,2 мм Settlement specific loads on the basic relaying elements [Ϭ к ] = 8-15 кг/мм 2
  12. 12. Sample of experimental design of MPV Tractor variator
  13. 13. The sample of experimental construction МСВ
  14. 14. Patent protection of М PV Ukraine Russia Belorussia China Stand tests of MPV with automatic control Machines and systems institute ( IMIS ) г. Kharkov , Ukraine
  15. 15. Contacts Association « Ukrainian innovation companies » 49000, Ukraine , Dnepropetrovsk 81, Karl Marks Ave Tel/fax : +380 56 2 350080 web : www.auic.com.ua e-mail: [email_address] Contact person: Vice president of the Association , Dr . Alexander Pliskanovsky mobile : +380 50 4801703 e-mail: [email_address]

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