New generation of mechanical power VARIATORS

New generation ofNew generation ofmechanicalmechanical

powerpower

VARIATORSVARIATORS

Implementation Tractors Agricultural machinery Excavating machines Cars, trucks and buses Military machines Load-lifting machines Process equipment drives Motor-variators Power equipment Mining equipment Road-building machines

Working principle of a mechanical power variatorWorking principle of a mechanical power variator

Main principle: Point A fixing of the shaft

(a detail 2) in the necessary

time in a proper place with

moving possibility of

other points. Points O and M

are a spinning ax of the

input (a detail 3) and the output

(a detail 2) shafts accordingly.

Distance О-М (further “е”) is

The eccentricity of a variator

and also can change over

the range from 0 to еmax due

to the mutual crank twirls

(a detail 1) and the input shaft (a detail 3)

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.

The offered principle provides unaccented fixing of a point A and an output shaft uniform rotation.

е

O

M

Detail 2

Detail 3

А

Detail 1

N

Transmissions’ characteristicsTransmissions’ characteristics

Works with the greatest efficiency only in separate points.

The characteristic of transmission with frictional variatorsWorks 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 МPVWorks 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

Areas of technical maintenanceAreas of technical maintenance W kW

Ultrahigh more than 500

High100-500

Medium10-100

Low1-10

Ultralow less than 1

Ultralow Low Medium High Ultrahigh

less than 10 10-200 200-3000 3000-10000 more than10000 N turns/min

Drive type

MPV

Hydraulic

Wedge-belt

Multidisc

Operational and technical advantages Possibility of installation with engines of various power, including more

than 500 kW.Effective work in a wide control range of speeds, Vmax / Vmin is more

1000.Transferred twisting moment up to 100 кN*м. High efficiency (92–95 %). Possibility to work without the clutch. Possibility of stable and long work on small target turns and the

maximum loadings (a repent regime). Weight and size characteristics are in 1,5–2 times less than at

comparable multistage gear reductors. High durability of work due to the minimum contact loadings

(σk ≤ 15 kg/m2) on transferring elements of MPV.

Simple manufacturing methods.

Comparison МPV with other types of variatorsComparison МPV with other types of variators

Drive typeParameter

MPV Hydraulic Multidisc Wedge-belt

Efficiency, % 92-95 75-87 85-89 84-88

Kinematic range, Vmax / Vmin 1000

and more3 6 5

Comparative metal consumption, % 70 100 95 93

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

Technical data of a class 1.4 tractors' automatic Technical data of a class 1.4 tractors' automatic transmission controlled by transmission controlled by ММPV (adaptation)PV (adaptation)

The maximum transferred power HP/кW 204/150Nominal rotational speed of the input shaft, min-1 1500±200Max rotational speed of the input shaft, min-1 less 2200Rotational speed of the output shaft, min-1 360±50Min rotational speed of the output shaft, min-1 0Max rotational speed of the output shaft, min-1 525The maximum moment on the input shaft, Nм 600The maximum moment on the output shaft, Nм 2800Variator’s efficiency 0,94 – 0,96 The maximum transmission ratio, N*m more than 1000The minimum transmission ratio, N*m 4,2-4,5Size, mm, less than length 565

width 480height 390

Weight, kg 150±20

Technical data of a class 1.4 tractors' automatic Technical data of a class 1.4 tractors' automatic transmission controlled by transmission controlled by ММPVPV

The maximum transferred power HP/кW 136/100Nominal rotational speed of the input shaft, min-1 1700Max rotational speed of the input shaft, min-1 less 2200Rotational speed of the output shaft, min-1 less 2200Min rotational speed of the output shaft, min-1 0The maximum moment on the input shaft, Nм 600The maximum moment on the output shaft, Nм 1700Variator’s efficiency 0,90– 0,94Adjusting 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)

General view of construction MPVGeneral view of construction MPV

THE BASIC TECHNOLOGICAL THE BASIC TECHNOLOGICAL PARAMETERS AT MANUFACTURE МСВPARAMETERS AT MANUFACTURE МСВ

Materials used for manufactureст.40, ст.45, ст.40Х,

ст.20

Degree of accuracy of details manufacture 7

Degree of accuracy of cones manufacture 8

Hardness of detailsHRC – 28,0-38,5HRCэ – 45,0-57,0

Case hardening of details h = 0,7-1,2 мм

Settlement specific loads on the basic relaying elements

[Ϭк ] = 8-15 кг/мм2

Sample of experimental design of MPVSample of experimental design of MPV

Tractor variator

The sample of experimental construction The sample of experimental construction МСВ МСВ

Patent protection of Patent protection of ММPVPV

Ukraine

Russia

Belorussia

China

Stand tests of MPV with automatic controlStand tests of MPV with automatic controlMachines and systems institute(IMIS)

г. Kharkov, Ukraine

ContactsContacts

Association Association ««Ukrainian innovation companiesUkrainian innovation companies»»49000, Ukraine, Dnepropetrovsk

81, Karl Marks Ave

Tel/fax: +380 56 2 350080web: www.auic.com.ua

e-mail: [email protected]

Contact person:Contact person:

Vice president of the AssociationVice president of the Association,,DrDr. . Alexander PliskanovskyAlexander Pliskanovsky

mobile: +380 50 4801703e-mail: [email protected]