Power delivery efficiency of a wheeled tractor at oblique drawbar force

Simikić, Mirko; Dedović, Nebojša; Savin, Lazar; Tomić, Milan D.; Ponjičan, Ondrej

doi:10.1016/j.still.2014.03.010

Cited by 43 publications

(19 citation statements)

References 13 publications

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“…According to [15] and [16], the hydrostatic pressure transfer system and the use of the hydrodynamic principle requires a perfect medium, therefore the hydraulic fluid must meet all the conditions encountered in the operation of hydraulic systems. Determination of the state and transfer of thermal and oxidative degradation of the oil is the most important criterion for oil life [5].…”

Section: Resultsmentioning

confidence: 99%

Research of characteristics of environmental energy carriers by simulation of operating load in laboratory conditions

Janoušková

Kaszkowiak

Halenár³

et al. 2019

MATEC Web Conf.

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The focus of this sceintific article is a laboratory research on the qualities of environmental energy carriers by simulating the operational load, focusing on changes of physico-chemical qualities of ecological hydraulic and transmission fluid used in agricultural tractors. In laboratory setting by using a simulator, it was possible to simulate different operational load and also track changes in qualities of hydraulic fluid by changing the flow in precise intervals. The hydraulic-transmission fluid used in the laboratory setting was the MOL Farm NH Ultra.

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Section: Resultsmentioning

confidence: 99%

Research of characteristics of environmental energy carriers by simulation of operating load in laboratory conditions

Janoušková

Kaszkowiak

Halenár³

et al. 2019

MATEC Web Conf.

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“…Several authors are involved in the evaluation of hydraulic fluid during the operational test with subsequent analysis of contaminants, for example Kučera et al (2016) and Tulík et al (2016). As Simikić et al (2014) says, machines working in agriculture are characterized by demanding operation, often work in dusty and humid environment, which negatively affects the contamination of fluid Average values of the hydrogenerator, dm 3…”

Section: Discussionmentioning

confidence: 99%

Flow Characteristics of Hydro-Generator QHD 17 Independence on the Change of Physical Properties of Hydraulic Fluid

Hujo¹,

Jablonický²,

Kaszkowiak³

2020

Engineering Mechanics 2020

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The flow characteristics of the hydrogenator QHD 17 were measured in laboratory conditions using hydraulic-transmission liquid MOL farm NH Ultra. Testing of the aforementioned hydraulic-transmission fluid was carried out on a laboratory testing device, which allows to test hydrostatic transducers and transmissionhydraulic fluids. Results of the research include evaluation of flow properties of hydro-generator and flow efficiency, the physical properties of the testing transmission-hydraulic fluid.

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“…Pri realizaciji većih sila vuče javlja se proklizavanje pogonskih točkova. Rad sa traktorom pri povećanom proklizavanju pogonskih točkova dovodi do veće potrošnje goriva i habanja delova traktora, što direktno povećava troškove proizvodnje i smanjuje ekonomsku moć poljoprivrednih proizvoĎača, (Simikić et al, 2014). Proklizavanje predstavlja smicanje čestica zemljišta zahvaćenog rebrima pneumatika, koji zasecaju zemljište pri kontaktu sa njegovim površinskim slojem.…”

Section: Rezultati Istraživanja Sa Diskusijomunclassified

Effects of tires on tractor traction performance

Simikić¹,

Savin²,

Tomić³

et al. 2015

Savr poljopriv tehnika

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Osnovni zadatak u procesu proizvodnje hrane je povećanje prinosa i smanjenje troškova po jedinici proizvoda. Sa tim u vezi pored velikog broja faktora koji utiču na kvalitet rada i na veličinu troškova proizvodnje kod traktora se izdvaja i stanje pneumatika koje će u ovom radu biti analizirano. Zbog trenja pneumatika u kontaktu s podlogom neminovno dolazi do njihovog trošenja pri čemu se menjaju i njihove dimenzije, što ima veliki uticaj i na vučne karakteristike traktora. Za ocenu efikasnosti korišćeni su energetski parametri traktora: sila vuče, snaga vuče, proklizavanje, časovna potrošnja goriva, specifična potrošnja goriva i stvarna brzina. Rezultati istraživanja potvrĎuju da su vučne karakteristike traktora bolje pri korišćenju novih pneumatika. Upotreba starih pneumatika utiče u značajnoj meri na pogoršanje vučnih karakteristika traktora tako što se pri njihovoj upotrebi ostvaruje veća potrošnja goriva i slabije vučne karakteristike. Nabavka novih pneumatika sigurno predstavlja značajnu finansijsku stavku u poslovanju svakog poljoprivrednog gazdinstva. MeĎutim, pravovremenom zamenom pneumatika, traktor će imati veće vučne mogućnosti i manju potrošnju goriva, što će se pozitvno odraziti na poslovanje gazdinstva.

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Power delivery efficiency of a wheeled tractor at oblique drawbar force

Cited by 43 publications

References 13 publications

Research of characteristics of environmental energy carriers by simulation of operating load in laboratory conditions

Research of characteristics of environmental energy carriers by simulation of operating load in laboratory conditions

Flow Characteristics of Hydro-Generator QHD 17 Independence on the Change of Physical Properties of Hydraulic Fluid

Effects of tires on tractor traction performance

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