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Replace the lower bearing of the door machine with the jacking method (3)
Source: China Bearing Network Time: 2018-07-26
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4) Remove the middle slip ring fixing bolt; lift the middle slip ring; completely separate the middle line pipe connecting the middle slip ring from the lower interface.
5) Do the bearing marks on the support base and the cross beam.
6) Prepare various repairs and a radial thrust spherical roller bearing (model number 9069436).
5, the number of construction and division of labor 1) 1 person throughout the process of command; grasp the construction process in full; with the password command to rise; make the top up to maintain synchronization.
2) 2 people listen to the command password; operate the jack; reverse the door machine and evenly rise.
3) 1 person investigates the top elevation of the roller; does not make the roller exceed the limit orientation.
4) 2 people go down the door to prevent the wind pin; when the jack up, the windproof pin is always in the windproof pin seat.
5) 1 person looks after the wind rope; and pays attention to the situation around the door machine.
6, the construction process and matters needing attention 1) the commander with a password to command the top; use the walkie-talkie and the survey roller to insist on contact; know the top elevation. Together to grasp the situation around the door machine.
2) The operating jacks obey the command password; they are in harmony with each other; force together; make the door machine reversed and are evenly lifted evenly. The anti-wind pinners cooperate closely; synchronously turn down the anti-wind pin; must be tightened; force.
3) The top elevation shall not exceed 120mm. When the jacking rises, the iron block shall be added at any time; after reaching the top height, the open space between the jacking bracket and the cross beam shall be tightly filled with iron blocks.
4) Remove the damaged bearing inner raceway and roller.
5) Remove the connecting bolts of the lower support seat and the cross beam. Use a hammer to loosen the joint between the lower part of the lower support and the cross beam. Then use the iron shovel to lift the lower part of the support and gradually remove it; pay attention not to damage the middle line. Pipe interface.
6) Remove the damaged bearing lower raceway. The middle line pipe and the lower part of the lower support seat are easy to seep; the oil leakage is found to be repaired by electric welding.
7) The lower contact surface of the lower bearing seat needs to be corrected; then it should be removed. The bearing fragments that focus on damage must be cleaned.
8) Install the lower part of the lower support; tighten the bolt; pay attention not to damage the middle line tube. Place the new bearing; add the lubricating oil.
9) Put down the door machine to reverse some; the jack gradually decreases; the windproof pin is then unscrewed; the iron plug is gradually pulled out; the focus can not be extracted in a few minutes.
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