FIELD: mechanical engineering.
SUBSTANCE: braking device comprises braking drum, friction unit, pressing rollers mounted in the U-shaped jaws which are connected with the rod coupled with the piston of air chamber. The friction unit is made of a flexible ring which is made of a belt with flanges. The outer side of the belt is covered with a friction material for permitting its self-pulling between the inner side of the friction drum and pressing cylindrical rollers. The rollers are arranged over the periphery of the inner side of the rim of the drum with a step of π/2. The friction coefficient between the outer side of the belt and inner side of the friction drum is greater than that between the inner side of the friction belt and working sides of the cylindrical rollers.
EFFECT: enhanced breaking efficiency.
3 dwg
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|---|---|---|---|
| MULTI-STAGE BELT-DRUM BRAKE WITH PAIRS OF SLIDING AND ROLLING FRICTION | 2010 |
|
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|
RU2382250C2 |
| DRUM-SHOT-TYPE BRAKE WITH "HEAT PIPE"-TYPE COOLING | 2007 |
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| DOUBLE-STAGE BELT-BLOCK BRAKE WITH FORCED COOLING | 2006 |
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| DEFINITION METHOD OF HEAT FLOW SHARING COEFFICIENT BETWEEN FRICTION PAIRS OF DIFFERENT KINDS OF FRICTIONAL UNITS IN BAND-BLOCK BRAKES OF DRAW WORKS (VERSIONS) | 2007 |
|
RU2386061C2 |
| DOUBLE-STEP BAND-SHOE BRAKE | 2008 |
|
RU2387893C2 |
