The new clean room electric hoist cooperates with the bridge crane. Its main structure includes double steel structure main beam. Both ends of the structural main beam are connected with the crane end beam, and the ring chain electric hoist is cleaned repeatedly along the trolley running track in the steel structure main beam. In the design of electrical control system and trolley power supply cable, a drag chain is installed on one of the steel structure main beams, and the trolley power supply cable is embedded into the drag chain. In addition, the steel structure beam, crane end beam, clean room electric hoist and electrical system are equipped with an anti-static inorganic anti-corrosion soil layer. This type of structure not only has a more stable structure, but also can avoid cable wear and dust-proof grade is very high, Avoid dust absorption due to electrostatic problems. Its main advantages are:
1. The trolley running track is made of stainless steel, which can reduce the wear and corrosion during trolley operation, and greatly reduce the debris problem caused by repeated operation of electric hoist;
2. An electrostatic device is installed on the main beam of the steel structure, so the main beam is not easy to accumulate static electricity, which can avoid the problems of dust adsorption and hair adsorption;
3. The trolley is mainly made of stainless steel wheels, and a layer of inorganic anti-corrosion coating is applied on the wheel surface, so as to reduce the problems such as wheel wear and falling debris;
4. The inorganic anti-corrosion coating selected is a water-based zinc chromium coating, which not only has very good anti-corrosion performance, but also has hydrogen free brittleness. It is suitable for high-strength stressed parts and can withstand the temperature of 300 ℃. It has strong adaptability in the application of high-strength components, and the coating can be used;
5. The lifting hook is mainly made of stainless steel to ensure that the selected materials meet the din1540 standard, so as to ensure that there will be no more particles between the hook, sling and rope due to friction;
6. The lifting chain mainly adopts alloy steel g80 chain, which has high strength, strong wear resistance, good test resistance, low elongation and strong plasticity. Conductive resin is coated on the lifting chain, so that the surface static electricity can be exported. The use of high-strength chain will not produce friction dust during traction;
7. The main body of the crane mainly adopts anti-corrosion and anti friction polyurethane finish, which has the characteristics of good post gloss, no softness and no stickiness, and has very high chemical resistance and water resistance