초록 ▼

A valve/actuator torque overload protector is disclosed as operably associated relative to driving and driven members which are pre-set to transmit limited torque during relative rotary movement between the members. A plurality of spring-loaded tapered rollers are mounted on one of the members for d

A valve/actuator torque overload protector is disclosed as operably associated relative to driving and driven members which are pre-set to transmit limited torque during relative rotary movement between the members. A plurality of spring-loaded tapered rollers are mounted on one of the members for driving engagement with complementary detents on the other of the members. The spring-loaded tapered rollers are pre-set relative to the complementary detents*** in order to permit limited torque engagement of the driving and driven members during relative rotation thereof. However, upon encountering torque exceeding pre-set limits, the spring-loaded tapered rollers disengage from the complementary detent*** to interrupt the transmission of torque between the driving and driven members.

대표청구항 ▼

In a valve/actuator torque overload protector having driving and driven members pre-set to transmit limited torque between the members, the improvement comprising: spring-loaded tapered rollers operably associated with one of said members for engaging complementary detents on the other of said membe

In a valve/actuator torque overload protector having driving and driven members pre-set to transmit limited torque between the members, the improvement comprising: spring-loaded tapered rollers operably associated with one of said members for engaging complementary detents on the other of said members, said spring-loaded tapered rollers being pre-set relative to said complementary detents to permit limited torque engagement of said driving and driven members during relative rotation thereof, such that upon encountering torque pre-set limits, the spring-loaded tapered rollers disengage from said detents to interrupt the transmission of torque between said members, the diameter of said tapered rollers progressively increases along the path thereof in direct proportion to the radial distance from the center of rotation of said driving and driven members, said tapered rollers each having an axis extending perpendicular to said center of rotation.