The purpose and working principle of ratchet

The purpose and working principle of ratchet

An expert in the field of hardware tools - Ningbo Yongrong Technology Co., Ltd. will explain to you the purpose and working principle of the ratchet today.
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A ratchet is defined as a gear with a rigid toothed surface or friction surface on the outer or inner edge, and is an important component of a ratchet mechanism. The stepping motion is driven by the pawl, and the characteristic of this meshing motion is that the ratchet can only rotate in one direction, but cannot be reversed.
The structure of the ratchet
The ratchet is the main component of the ratchet mechanism. The spring action forces the pawl and ratchet to stay in contact. The rocker is empty on the ratchet shaft, the pawl is mounted on the rocker, and the ratchet
It is fixed on the driven shaft with a key.
The principle of ratchet
When the rocker of the active member swings counterclockwise, the driving pawl is inserted into the tooth slot of the ratchet, pushing the ratchet to rotate through an angle, at this time, the stop pawl slides on the tooth back of the ratchet
move. When the rocker of the driving element swings clockwise, the female stopper of the stop pawl rotates clockwise, but the driving pawl can slide over the tooth back of the Han wheel, so the stopper cannot stand still.
move. In this way, when the rocker makes continuous reciprocating swing, the ratchet will make a one-way intermittent movement. Among them, the reciprocating swing of the driving member can be controlled by the cam mechanism of the swing follower, the crank
Rocker mechanism or obtained by hydraulic transmission and electromagnetic device, etc.