Torque-limiting overload protector

The utility model relates to a limit-torque overload protector, belonging to an overload protection device in mechanical transmission, comprising a driving shaft (1) which is sleeved sequentially with an oil-free lubrication bearing (9), a driven disk (8) and a steel ball keeping bracket (7) provide...

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Bibliographic Details
Main Authors JINGQI LI, CHUNXIANG CAO, HEPING XING
Format Patent
LanguageEnglish
Published 05.03.2003
Edition7
Subjects
BLASTING
BRAKES
CLUTCHES
COUPLINGS FOR TRANSMITTING ROTATION
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:The utility model relates to a limit-torque overload protector, belonging to an overload protection device in mechanical transmission, comprising a driving shaft (1) which is sleeved sequentially with an oil-free lubrication bearing (9), a driven disk (8) and a steel ball keeping bracket (7) provided with a steel ball (6), wherein a driving disk (5) is connected with the driving shaft (1) through a spline; a gland bush (2) is screwed and fastened on the driving shaft (1) by a holding screw (15); a plurality of springs are evenly distributed between the gland bush (2) and the driving disk (5); the oil-free lubrication bearing (10) is positioned between a driven shaft (11) and the driving shaft (5); the driven shaft (11) is fixed on the driven disk (8); and a dust cover (13) is fixed on the driving disk (5). When overloaded, the steel ball (6) is dropped out of a tapered pit (17) of the driving disk and a tapered pit (12) of the driven disk and the dust cover is moved rightwards along with the driving disk (5) to start a contact switch so as to control the electric control system; therefore, the motor is stopped and the torque can not be transmitted by the driven disk, which protects the electromechanical equipment from being damaged and prevents the occurrence of accidents.
Bibliography:Application Number: CN2002273380U