抓斗清污机主要由卷扬机构、钢丝绳、耙斗、钢丝绳滑轮、耙斗张合装置、机械过力矩保护、移动行车、地面固定式轨道及移动行车定位装置组成。
抓斗清污机主要由卷扬机构、钢丝绳、耙斗、钢丝绳滑轮、耙斗张合装置、机械过力矩保护、移动行车、地面固定式轨道及移动行车定位装置组成。整机定位清污动作、耙斗升降、耙斗张合、耙斗污物刮除等与固定安装的钢丝绳牵引耙斗式格栅除污机相同，唯有上机架与下机架分体，上机架全部设在移动行车上。其工作原理为：除污时，机架移动到需清污的格栅位置，当上下机架对位准确后，耙斗才可顺利下放除污。对于宽幅格栅，除污机除污完毕移动一个齿耙有效宽度，继续除污，直至格栅栅面污物完毕，栅前后水位差达到正常值时为止。对于多沟渠分布格栅，除污机除污完一个沟渠的格栅后，移动至另一沟渠，继续除污，直至所有沟渠格栅栅面污物完毕，栅前后水位差达到正常值时为止。
Grab cleaner is mainly composed of hoisting mechanism, wire rope, rake bucket, wire rope pulley, rake bucket tensioning device, mechanical over-moment protection, mobile driving, ground fixed track and mobile driving positioning device. The positioning and cleaning action of the whole machine, the lifting and lifting of the rake bucket, the opening and closing of the rake bucket, and the scraping of the rake dirt are the same as the fixed installation of the wire rope traction rake bucket grille cleaner. Only the upper frame and the lower frame are separated, and the upper frame are all installed on the mobile traveling car. Its working principle is: when removing pollution, the rack moves to the grille position which needs to be cleaned up. When the upper and lower racks are aligned accurately, the rake bucket can be smoothly lowered to remove pollution. For the wide grille, the decontaminator moves the effective width of a tooth rake after decontamination, and continues to decontaminate until the grille surface is finished and the water level difference before and after the grille reaches the normal value. For multi-channel distribution grids, the decontaminator moves to another channel after the grille of one channel has been decontaminated, and continues to decontaminate until the grille surface of all channels has been decontaminated and the water level difference before and after the grille reaches the normal value.
