1. bookVolume 20 (2016): Issue 1 (April 2016)
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12 Mar 2016
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access type Open Access

Analysis of Traction Properties of Massey Ferguson 7475 Tractor on Selected Deformable Surfaces

Published Online: 18 Jun 2016
Page range: 137 - 145
Received: 01 Nov 2015
Accepted: 01 Jan 2016
Journal Details
License
Format
Journal
First Published
12 Mar 2016
Publication timeframe
1 time per year
Languages
English
Abstract

The research concern selected traction properties of Massey Ferguson 7475 wheeled tractor, which were carried out on various deformable surfaces i.e. soil: after ploughing, sodded and with rye fore crop. The impact of driving speed on tractive power and force with 2WD and 4WD drive was investigated. Physical and chemical properties of soil during testing were characterised by moisture, compactness and maximum shearing stresses. Studies on traction properties were carried out with the use of two tractors: Massey Ferguson 7475 and New Holland 5040. During measurements, tractors were connected with a tow rod, where a strain force transducer was mounted. The stand enabled also measurement of theoretical speed. As a result of analyses of the obtained results, characteristics of tractive force and towing power as a function of slip were made. The tests confirmed that the use of four-wheel drive is unjustified because it improves these tractive parameters of a tractor. It was reported that the maximum force and towing power are generated for the lowest values of slip which is equal to 0.1 on the sodded surface. However, value of this power is the lowest in comparison to other surfaces. The highest value of the adhesion coefficient was reported on soil with rye fore crop.

Keywords

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