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Vol. 11, Special Issue 2 (2022)

Performance evaluation of anti-vibration measures for reducing hand transmitted vibration in self-propelled vertical conveyor reaper

Author(s):
Harsha Nag R, Mehtha AK and Mude Arjun Naik
Abstract:
Background: Harvesting rice, wheat, and some other grain crops is popular with the Self- Propelled Vertical Conveyor Reaper (SPVCR). It has been known that continuous exposure to hand-transmitted excitations has an adverse influence on operators. It effects on bloodstream, peripheral nervous system, or the musculoskeletal system have indeed been considered as critical occupational hazards.
Methods: Two kinds of anti-vibration measures have been developed to reduce the adverse effects of Hand-Transmitted Vibration (HTV). Styrene-Butadiene Rubber and Neoprene rubber were used to develop anti-vibration measures. The constituents used for these anti-vibration measures were improved into cylinder-shaped isolators based on the load acting on the engine.
Result: To avoid vibration transmission to the handle, cylindrical isolators were situated between the engine and the frame. Maximum vibration in transportation was 27.98 m s-2 at 2800 rpm and maximum vibration in wheat harvesting was 19.90 m s-2 at 2200 rpm of engine. The vibration magnitudes were reduced more in case of x-direction, however, in y and z direction the vibration magnitudes were also reduced. Maximum vibration reduction was observed with Neoprene isolator at 2200 rpm (1/2 throttle speed). There was no significant difference between SBR and Neoprene at 2800 rpm (3/4th throttle speed), however reduction in vibration was above 80 per cent in both materials for transportation.
Pages: 1683-1689  |  297 Views  82 Downloads
How to cite this article:
Harsha Nag R, Mehtha AK and Mude Arjun Naik. Performance evaluation of anti-vibration measures for reducing hand transmitted vibration in self-propelled vertical conveyor reaper. The Pharma Innovation Journal. 2022; 11(2S): 1683-1689.

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