Mechanical grille fittings make the rear of the track interior prone to derailment after long runs. The drag chain leads to derailment due to uneven deformation of the rake or rake of the mechanical grid. The main part is the movement of the long-pitch roller chain plate washer ( rotating mechanical grid ) . When the chain is in the arc transition, a large diameter should be designed to smooth the transition and reduce the pressure on the arc surface. The commonly used 125 -disc roller chain has a radius of not less than 350 mm . 　Generally speaking, the amount of sewage is large, so I think the purpose of manual treatment cannot be achieved by installing and using treatment equipment. The grid decontamination machine can be used in the sewage treatment industry. Such equipment has many advantages over conventional equipment. The structure of the device is unique and simple. It mainly consists of rack and cleaning device. Therefore, the fixed net cleaning equipment does not require space and can be installed to meet the requirements of field applications. The bearing temperature rises and the wear is severe. The mechanical grid attachment bearing slides against the bearing housing, causing rapid wear of the bearing housing. The oil groove design of the mechanical grille fittings is unreasonable, so that the grease cannot be completely distributed on the contact surface to form a pressure oil film. Fuel injection does not cause oil loss. The shaft pin is located between the bearing housing and the bearing housing to prevent relative sliding. Replace the self-lubricating bearing to improve the lubrication effect. Lubricate the bearing pads with a forced automatic lubrication system. In the use of grating EDM machines, users need to understand some issues, such as decontamination in the grids of sewage treatment equipment. If the equipment often causes downtime or equipment problems, it is necessary to cut off the power supply in time and conduct a comprehensive inspection of the equipment. In the process of sewage treatment effect, the problem of equipment failure cannot be put into use.

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