Incremental encoder with long service life for industrial automation control

The utility model discloses an incremental encoder with long service life for industrial automation control, which comprises an encoder body, a heat dissipation mechanism and a limiting mechanism, the heat dissipation mechanism is arranged on the right side of the encoder body, the limiting mechanism is arranged on the heat dissipation mechanism, the heat dissipation mechanism comprises a fixed shell and a heat dissipation opening, and the fixed shell is arranged on the right side of the encoder body. And the fixed shell is arranged on the right side of the encoder body. According to the utility model, through mutual cooperation of the fixing shell, the heat dissipation port, the connecting block, the exhaust fan, the exhaust port, the dustproof net and the fixing bolts, the heat dissipation effect of the encoder is greatly improved, external dust is prevented from entering the interior of the encoder through the heat dissipation port, the service life of the encoder is prevented from being affected, the prac