How to maintain the launching gantry?
Correct using, regular checking and suitable maintenance can make sure the bridge girder launcher works safely and prolongs its using life.
1. The maintenance of metal structure
Main girder is main force structure parts of the metal structure. The maintenance can influence the function, safety and life of the launching gantry directly. Therefore, we should pay more attention to the maintenance.
1.1 Start and brake sharply must be avoided.
1.2 Checking the connection welding lines of girders, if chinks found, stop using and then welding again.
1.3 When the main girder has a little deformation or loses stability, stop using immediately, and deal with it correctly.
1.4 All of the metal structures are painted two times every year. And oil stains, water and other appendages should be cleared before painted.
2. the maintenance of main parts
2.1 open-type and close-type driving gears are painted by grease a time each month
2.2 The rope should lubricate regularly, the dirt is cleared before lubricating. It must be replaced if the broken cords up to 6 pieces
2.3 The bearings must keep lubricating, lubricate regularly, cleared cleanly before oiled. If you find high temperature, significant noise, checking carefully, it should be replaced if it damaged.
2.4 When the abrasion of wheels exceeds 15% of thickness of original state or break, it should be replaced.
2.5 The reducer can’t lack in oil, change regularly, it should overhaul when you find noise and unusual phenomenon.
2.6 The brake of lifting mechanism should be examined once a day and the brake of running mechanism should be examined a time two or three days.
2.7 Drive bearings of cart and trolley ‘s walking boxes should fill the calcium-based grease a time every two years
3. the maintenance of electrical equipment
In order to make sure launching gantry work safely, we must know the reasons of accidents and solutions.
3.1 Keeping the cleanliness of electrical equipment, such as resistor, control panel and contactor ect. Cleaning dust and dust from interior to outer in order to avoid electric leakage, dielectric puncture and short circuit ect.
3.2 Observing regularly the rotor sliding line of motor and electric brush connect well or not.
3.3 The sounds of motor, electromagnet, electric relay and magnetic switch are normal or not.
