Automatic full-hydraulic-type individual prop demounting device

The utility model discloses an automatic full-hydraulic-type individual prop demounting device. A clamping chuck is mounted on a rack and connected with a shaft of a hydraulic motor, a torque sensor is arranged between the clamping chuck and the hydraulic motor, a clamping seat is placed on a rack guide rail, a grating sensor is arranged on the rack, a first sliding oil cylinder and an indicating grating of the grating sensor are mounted on the outer side of the clamping seat, a clamping oil cylinder and a popup clamping block are mounted inside the clamping seat, the clamping oil cylinder is connected with the popup clamping block through a connecting rod, a scale grating of the grating sensor is fixed on the rack guide rail along the axial direction, the scale grating and the indicating grating outside the clamping seat form a grating detection system, the hydraulic motor, the first sliding oil cylinder and the clamping oil cylinder are connected to a hydraulic pump station through a pipeline, and an electromagnetic valve is arranged on the pipeline and electrically connected with a control cabinet. Demounting of a hydraulic prop is automatically performed by the demounting device, no damage is caused to the hydraulic prop in the process of demounting, structure of an existing demounting device is simplified, and working efficiency is improved.