STRUCTURE FOR REDUCING FRICTION OF DISENGAGED FRICTION PLATE IN BRAKE OR CLUTCH DURING OPERATIONS

WIPO Patent Application WO/2021/217837

A1

A structure for reducing friction of a disengaged friction plate in a brake or a clutch during operations comprises a housing (2), a spline gear (1), static friction plates (8), dynamic friction plates (9), and a spring (4). N holes are provided at the static friction plates (8) near an outer circumference thereof, and the holes are provided with respective positioning shafts a (12). A spring (10) is provided between two adjacent static friction plates (8). The N positioning shafts a (12) have one end or two ends fixed to a stop plate (13) secured to the housing (2). M holes are provided at the dynamic friction plates (9) at an outer circumference thereof near the spline gear (1), and the holes are provided with respective positioning shafts b (7). M springs (10) are provided between adjacent dynamic friction plates (9). The M positioning shafts b (7) have two ends fixed to a stop plate a (6) and a stop plate b (11), respectively. A left and right shaft stopper (5) on the spline gear (1) are used to position the stop plate a (6) and the stop plate b (11), respectively. The structure for reducing friction solves the problem of excessive heat generation by brakes or clutches during operation, and improves the service life of brake or clutch friction plates by ten times or more.

HU SHIXUAN (CN)

PCT/CN2020/097405

November 04, 2021

June 22, 2020

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INI HYDRAULIC CO LTD (CN)

F16D55/24; F16D13/70; F16D25/0638; F16D65/095

JP2003222170A	2003-08-08
JP2003074603A	2003-03-12
CN2781072Y	2006-05-17
CN203756802U	2014-08-06
CN209212833U	2019-08-06
US20090133974A1	2009-05-28

FANG & ASSOCIATES (CN)

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