Efficiency of anti-vibration gloves in soil preparation using a micro tractor

José W N De Souza,Isabela O Lima,Walisson M Silveira,Viviane C Dos Santos,Leonardo De A Monteiro,Marcio P Da Silva

doi:10.1590/1807-1929/agriambi.v24n6p422-427

José W N De Souza, Isabela O Lima + Show 4 more

Open Access

https://doi.org/10.1590/1807-1929/agriambi.v24n6p422-427

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Abstract

ABSTRACT During the working day, agricultural machinery operators are often exposed to physical risks, such as vibration, which can compromise their health and performance. Micro tractors emit high levels of vibration, which mainly affect their hands and arms. Thus, this study aims at evaluating the efficiency of different glove models in reducing vibration transmitted by the micro tractor/rotary tiller assembly according to the operating velocity and the rotation of the rotary tiller rotor. A completely randomized block design was used in a 4 x 2 x 2 factorial arrangement with five replicates. The study analyzed three glove models (G1 and G2 anti-vibration models, and anti-impact model G3) and a control treatment under the same operating conditions, but without the use of protective equipment. The study was conducted at two operating velocities (V1 = 0.98 km h-1 and V2 = 1.6 km h-1) and two rotations of the rotary tiller rotor (R1 = 265 rpm and R2 = 520 rpm). None of the evaluated glove models reached the attenuation capacity required by the Occupational Hygiene Standard (Norma de Higiene Ocupacional - NHO 10) and, under some operating conditions, they raised the incident vibration levels, exceeding the values obtained when the work was performed without a protective equipment. Although the anti-impact model G3 and the anti-vibration model G2 did not reduce the transmitted vibration to the levels considered acceptable by NHO 10, the anti-impact G3 and anti-vibration G2 models showed better performance in the work performed at a velocity of 0.98 km h-1 and a rotation of 520 rpm of the rotary tiller rotor.

Highlights

Farmers are adhering to increasingly advanced technologies to achieve production targets
None of the evaluated glove models reached the attenuation capacity required by the Occupational Hygiene Standard (Norma de Higiene Ocupacional - NHO 10) and, under some operating conditions, they raised the incident vibration levels, exceeding the values obtained when the work was performed without a protective equipment
The anti-impact model G3 and the anti-vibration model G2 did not reduce the transmitted vibration to the levels considered acceptable by NHO 10, the anti-impact G3 and anti-vibration G2 models showed better performance in the work performed at a velocity of 0.98 km h-1 and a rotation of 520 rpm of the rotary tiller rotor

Summary

Introduction

Farmers are adhering to increasingly advanced technologies to achieve production targets. The use of agricultural machinery and implements is an important factor in this context, allowing the rationalization of agricultural work, increasing productivity, and reducing worker effort (Rodrigues et al, 2006). The size of agricultural machinery must consider several factors in order to reduce costs and waste. In the production of vegetables, micro tractors are recommended in family farming or areas with topography unfavorable to the use of robust machines. Since these machines transmit high levels of vibration, it is important to prepare a work schedule to reduce exposure (Albiero et al, 2015)

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