In the publication it is a question of development of GP ON YuMZ of A.M.Makarova new types of equipment and completion of existing models of the tractors which are meeting the requirements of the modern consumer market.
Completion of a design of YuMZ tractors allowed to increase reliability of models let out today, to expand a range of their application as is independent, and in a combination to units in agricultural branch of economy, in the industry, construction and municipal services.
GP ON YuMZ of A.M.Makarova – one of leaders of a world traktorostroyeniye in production universal propashnyx tractors of a traction class of 1,4 t. In the long term – development of new types of equipment and completion of existing models of the tractors which are meeting the requirements of the modern consumer market.
Engine
Due to the termination of release of engines by Ryyobinsky engine-building plant (Russian Federation) to traktoram YuMZ brands were adapted engines of razyolichny producers: Doytts (Germany), Iveko (Italy), MMZ (Republic of Belarus). The capacity of engines varies from 60 (6AKM.40), 80 (YuMZ-8040.2) to 100 h.p. (YuMZ-10244.2).
Use of engines of higher moshhnosti allowed to increase productivity traktora, and in a combination to increase in operational weight, application of the forward leading bridge, dovesti force of draft to 2,3 t that corresponds to tractors of a traction class of 2 t. And it concerns not only traktorov YuMZ-10244.2 which develop the force of draft specified above on the sixth transfer at speed of 8,3 km/h, but also the YuMZ-8240.2 tractors at which, it agrees rezultatam standard tests of UKRNIIPIT of L.Poyogorelogo, force of draft of 2,3 t is reached on the sixth transfer at speed of 7,2 km/h.
Coupling coupling
In due time the coupling coupling was one of problem knots. In recent years in this knot were usovershenstvovany:
- a conducted disk of the main coupling with a tangential damper and the increased diameter of overlays of a conducted disk with 316 to 340 mm;
- the stock of coupling with 1,85 to 2,0 is raised;
- bolts of fastening of the case of the coupling a stsepleyoniya to a flywheel case with M12 to M14 are strengthened, two bolts of M 16×65 are entered dopolyonitelno;
- durability of the case of the coupling of coupling at the expense of introduction of additional edges of rigidity is increased, its centering with a diesel engine case is improved.
Tests of the TR 99-10 new bezasbestovy frictional material of production of Belotserkovsky JSC Tribo, vnedreyony which will reduce wear of slips twice are finished.
Specialists of plant worked options of a noyovy design of the coupling of coupling with an independent drive of VOM with HATCH firm (Germany), Cheboksaryosky modular plant (Russian Federation).
Box of change of transfers
Increase of capacity established dvigateyoly, especially on YuMZ 10244.2 tractors, caused to increase reliability of separate knots of a box of change of transfers (check point). In this regard bylo some options are developed and approved: 12-speed, synchronized, 10-speed and 9-speed a check point.
The synchronized transmission (SKPP) imeet 12 speeds – from 2,94 to 30,45 km/h providing implementation of all agrotechnical requirements. By Skoroyosti are distributed on three ranges: slow, working and transport. Switching of ranges is carried out by gear couplings. Within a kazhyody range switching of four transfers osushhestvlyaetsya synchronizers. Speeds are picked up so that on one type of works rather ispolzovayony speeds of one range. Application of SKPP allows to use more fully capacity of a dvigayotel, to reduce time for gear shifting, oblegchit management of a tractor, to raise a rabotospoyosobnost of gear connections. Especially SKPP effective use on transport works.
The plant lets out also tractors sdevyatiskorostny a check point in which the transfer relations of gear wheels are changed, including in a number of gear wheels izyomeneno quantity of teeths that reduced sootnosheyony adjacent transfer numbers in the worker diapazone speeds, and the most loaded gear wheels izgotavlivayutsya from the strengthened steel. These changes allowed to increase margin of safety of the most nagruyozhenny gear wheels by 41-69 %, and in a combination with izmeneyoniy the transfer relations maksiyomalny transport speed with 24,6 to 33,1 km/h was increased.
Peredny Bridge
On tractors in capacity of 80,100 h.p. ustanavlivayutsya forward leading bridges (PMV) portal tipa productions MTZ (Republic of Belarus) and balochyony type of production "Saggago" Italy.
Installation of forward leading bridges allowed:
- to increase coupling qualities and passableness of a trakyotor, and also traction capacity;
- to increase reliability of a tractor at an ispolzovayoniya it with a face-to-face loader and face-to-face agricultural tools at the expense of use of tires of more vysoyoky loading capacity that allowed to increase statiyochesky and dynamic loadings. So, application in the PVM portal type of forward tires 11,2-20 instead of 9-20 increased the most permissible load by the bridge with 2 to 2,3 t. Application in the PVM "Saggago" balochny type of forward tires 360/70B24 increased loading to 3-3,5 t. On new models of YuMZ tractors for privoda PVM is developed and introduced the new transfer case providing automatic inclusion of the forward leading bridge at set slipping of back wheels and its switching off at decrease a buksovayoniya as at movement of a tractor forward, and back.
Zadny Bridge
Zadny Bridge is located in the uniform case with a check point. This configuration does a design of a tractor of more rigid, the box of change of transfers – the back bridge" allows to leave from problems of the additional socket ". However this decision causes many nareyokaniye in consumers. The imperfection of differential demanding almost complete dismantling of a tractor, today are solved by application boyoly strong materials and change of process of a teryomoobrabotka, manufacturing improvement of quality.
Diameter of back half shafts with 75 to 82 mm that allowed to raise a permissible load on a zadyony axis in 1,3 times is increased, and it is especially important at an agregatirovaniye with modern heavy selxozorudiyami, the municipal and industrial equipment.
General configuration of a tractor
On new models of YuMZ tractors the konstyoruktsiya of longerons and a forward bar is changed. Longerons make of a sheet bent profile of pereyomenny section with the strengthened levels, and the forward bar fastens to longerons the strengthened bolts.
The tractor is equipped with a hydrovolume steering upyoravleniye with the pump batcher, independent gidroyosistemy and the Ts-50 hydrocylinder which has been built in a ruyolevy trapeze. For providing agrotechnical requirements in the hydrocylinder the usovershenstyovovaniye are introduced, allowed to increase not only a tractor agrogleam, but also considerably to increase reliability of work of system of a steering. Increase of reliability of fastening of axes of longitudinal drafts dostignuto at the expense of hardening of carving connection. In a forward axis installation of the strengthened bearings of a nave of forward wheels is provided.
For the purpose of comfort increase on a workplace the seat of the driver of "RIOT" of model 997C/ZM80H is established.
For increase of tightness of the hydraulic booster of a drive of switching off of the coupling of coupling in 2007 vnedyoreno the modern import consolidation of Simrit firm having the following properties: small treyony and reliable consolidation of static and dinamichesyoky connections.
Completion of a design of YuMZ tractors allowed at existing prostote to their design to increase reliability vypuskayeyomy today models, to expand a range of their primeyoneniye as is independent, and in a combination with agregatami in agricultural branch of economy, in the industry, construction and a municipal hoyozyaystvo.
On magazine materials Equipment of agrarian and industrial complex.