Antifriction device of torque limiter

Abstract

The invention relates to the technical field of mechanical equipment and discloses an antifriction device of a torque limiter. The antifriction device comprises a machine case. One end of an inner cavity of the machine case movably sleeves a driving disk. The other end of the inner cavity of the machine case movably sleeves a driven disk. The middle portion of the outer surface of the driven diskis fixedly connected with a first spring. According to the antifriction device of the torque limiter, when a transmission mechanism is overloaded, the spring is compressed under the action of balls toenable the driving disk to be separated from the driven disk; at the moment, as the driving disk still continuously rotates, stop blocks extend out under the action of centrifugal force and move to grooves of one side of the driving disk, one sides of the balls make contact with one ends of the stop blocks, the driving disk continuously rotates to stop the balls from returning, and collision between the balls and the driving disk is converted into rolling friction of the balls to the driving disk and the stop blocks. The problem that balls collide with a driving disk and have a loss when a traditional ball type torque limiter is overloaded is solved. Losses of the balls and the driving disk are reduced, and the service life of equipment is guaranteed.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to an anti-friction device of a torque limiter. Background technique [0002] Torque limiter, also called safety coupling, is a component that connects the driving machine and the working machine. It protects the driving or driven parts in the transmission system. The main function is overload protection. According to its working principle, it can be divided into ball type, friction Type, hydraulic type, magnetic powder type and other styles, mainly used in agricultural and forestry machinery, machine tool equipment, electronic equipment industries, etc. The torque limiter is when the required torque exceeds the set value due to overload or mechanical failure, the torque limiter will be Limiting the torque transmitted by the transmission system in the form of slipping prevents damage to the machine or the transmission shaft. [0003] When the traditional ball-type torq...

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Problems solved by technology

[0004] Aiming at the deficiencies in the use of the existing torque limiter proposed in the background technology, the present invention provides an anti-friction device for a torque limiter, which has the advantages of reducing friction and facilitating maintenance, and solves the problems raised in the above background technology. The problem

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