BELT TRANSMISSION MECHANISM FOR COOLING TOWER AIR BLOWER

WIPO Patent Application WO/2020/110209

A1

With this belt transmission mechanism for a cooling tower air blower, a flat belt is used as a transmission belt for an air blower, a tensile force adjustment part that minimizes belt meandering is appropriately placed, the belt can be prevented from falling off, and an impeller can be driven more efficiently while the need for maintenance is eliminated. Specifically, a flat belt is used as a transmission belt (13) stretched between a drive-side pulley (11) and a driven-side pulley (12), a tensile force adjustment part (14) that holds the belt (13) by a tension pulley (14d) in contact with the belt (13) so that the belt (13) does not sag is made to also have a function of minimizing meandering of the belt (13) during travel, and the rotational center position of the tension pulley (14d) is positioned near the driven-side pulley (12); therefore, the belt (13) can be appropriately restrained by the tension pulley (14d) of the tensile force adjustment part (14), and misalignment of the belt (13) can be minimized to prevent the belt from falling off the pulleys even when the travel direction of the belt (13) changes due to the impeller rotating in reverse.

JP2000054991	AXIAL IMPELLER
JP2014185590	BLOWER AND LIVING ROOM WITH THE SAME

KARUBE ATSUSHI (JP)
KUMASHIRO AKIFUMI (JP)
MIYATA HIROFUMI (JP)
YOSHIMI TAKEMASA (JP)
HAMASAKI YUTA (JP)

PCT/JP2018/043647

June 04, 2020

November 27, 2018

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KUKEN KOGYO CO LTD (JP)
BANDO CHEMICAL IND (JP)

F04D25/08; F16H7/12; F28F25/10

JPS63176870A	1988-07-21
JP2008169973A	2008-07-24
JP2004324801A	2004-11-18
JP2015048160A	2015-03-16

HIRAI Yasuo (JP)

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