Construction explosion-proof electric hoist, also known as explosion-proof electric hoist, is an indispensable group hanging explosion-proof electric hoist in daily life. Explosion-proof electric hoist the exposed explosion-proof parts of the hoist are made of special non-spark materials, and the explosion-proof performance is safe and reliable. Products through the ministry of machinery industry explosion-proof electrical products quality supervision and inspection center Jiamusi sub-center explosion-proof performance testing, and issued explosion-proof certificate. As long as it is used for the installation and construction of large equipment, the construction of oil tanks, the construction of climbing frames, etc., it is a small lifting tool, explosion-proof electric hoist special electric control box is used for lifting dozens and hundreds of electric hoist, lifting dozens and hundreds of tons of large equipment or oil tanks and other objects. Explosion-proof electric hoist the exposed explosion-proof parts of the hoist are made of special non-spark materials, and the explosion-proof performance is safe and reliable. Products through the ministry of machinery industry explosion-proof electrical products quality supervision and inspection center Jiamusi sub-center explosion-proof performance testing, and issued explosion-proof certificate.
Construction enterprises explosion-proof electric hoist maintenance:
1. The sprocket should be installed on the shaft and should not be tilted or swung. Explosion-proof electric hoist the exposed explosion-proof parts of the hoist are made of special non-spark materials, and the explosion-proof performance is safe and reliable. Products through the ministry of machinery industry explosion-proof electrical products quality supervision and inspection center Jiamusi sub-center explosion-proof performance testing, and issued explosion-proof certificate. The end faces of the two sprockets in the same transmission assembly shall be on the same plane. When the center distance of sprocket is less than 0.5 meters, the allowable deviation is 1 mm; When the center distance of sprocket is greater than 0.5m, the allowable deviation is 2mm. However, friction on the side of the sprocket teeth is not allowed. If the two wheels move too much, the chain can easily break, accelerating wear and tear. When replacing the sprocket, check and adjust the offset.
Figure 2. Explosion-proof electric hoist chain should be properly loose, too tight will increase power consumption, bearing easy wear; Too loose a chain is apt to jump. Chain tightness: from the middle of the chain up or down, the center of the two sprockets is about 2%-3% apart.
3. The new chain is too long or stretched after use, which is difficult to adjust. The links can be removed as appropriate, but they must be flat. The chain link should pass through the back of the chain, the lock plate should be inserted on the outside, and the opening of the lock plate should face the opposite direction of rotation.
4. If the sprocket is worn seriously, the new sprocket and the new chain should be replaced at the same time to ensure good engagement of students. Do not replace the new service chain or sprocket separately. Otherwise it will affect the different meshing produces bad can accelerate the wear of the new chain or new sprocket. Sprocket tooth surface wear to a certain degree of development should be turned over in time use (refers to adjustable surface use sprocket). To extend the enterprise to use a time.
5 lifting chain in the work should remember to add lubricating oil in time. The lubricating oil must enter the gap between the roller and the inner sleeve to improve the working conditions.
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