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MDDK milling machine rubs the installing and dismantling of the bearing of the roller


30th September 2010 Bearing Technology 0 Comments

The milling machine is one of the capital equipment of the flour mill, it is a key part of the milling machine to rub the bearing of the roller, and need to hold and dismantling frequently, so, what the bearing is assembled is good and bad, will influence the operation performance of the milling machine directly, waste the service life of the bearing of the roller, and could dismantle the bearing smoothly next time.

1 assembles and rubs the bearing of the roller correctly

Rub roller whom bearing assemble fine assembling the intersection of rear bearing and interval while being bad ‘ Interval between bearing outer lane and pearl Determine. Generally speaking, the new bearing interval before assembly of bearing is 0.065-0.090mm, its interval narrowed 0.035-0.045mm after the bearing was assembled, the interval of bearing is 0.03-0.05mm at this moment, but its minimum interval can’t be smaller than 0.030mm. That is to say, after rubing the bearing of the roller to assemble correctly, in a situation that there is no external force to apply, can promote balls with hands; Likewise, a little can turn the bearing outer lane to exert oneself. Use the long bearing, its interval will increase. Such as 0.105mm of the old bearing, the interval after it assembles is 0.06-0.07mm, if still assemble according to the requirement for 0.03-0.05mm while assembling, very difficult dismantlement of the bearing afterwards. The interval of bearing becomes large, its precision will be reduced correspondingly too, so, we should be on condition that influence the milling machine service ability, use new and old rationally and rub the bearing of the roller, namely old bearing interval is big Can use in the intersection of future and skin, rub system, new bearing spend on, require higher heart, dreg rub the system.

2 dismantlement which rub the bearing of the roller

What assembled correctly rubed the bearing of the roller according to the requirement for the operational procedure, it is very easy to pull down to utilize the specialized dismantlement tool. Go on, assemble not according to fixed requirement, rub roller bearing very much difficult to dismantle or unable to dismantle, it traces it to its cause to be as follows,

a.It is too loose to rub the bearing of the roller

Rub the intersection of roller and bearing during assembly, fail, reach required the intersection of bearing and interval, bearing it fails piece to be urgent, while using the high-pressure oil gun to dismantle the bearing, will be let out in rubing the surface of contact with inner circle of bearing of roller like this, thus have enough pressure come, unclamp bearing, meet the situation, only the intersection of bearing and closely one again we, then dismantle.

b.Rub the bearing high strung of the roller

Rub the bearing of the roller during assembly, not assembling the bearing on request, namely the bearing interval is too small, while using the high-pressure oil gun to dismantle the bearing like this, the pressure that the oil gun offers is unable to bring about deformation in inner circle of bearing to unclamp the bearing. Meeting this kind of situation, we can operate like this: First of all, take all bearing balls out, then take maintenance shelf and bearing outer lane of the ball out, go on heating with the intersection of flame and rifle to inner circle of bearing and then ‘ Guarantee the inner circle of bearing can’t be annealed ,And then dismantle the high-pressure oil gun.

3 attentive matters assembled while rubing the bearing of the roller

a.Rub the axle conical surface of roller and rub the bearing of the roller and should be washed, and check whether it damages or gets rusty;

b.Interval after primitive interval and one measuring and rubing the bearing of the roller are tight;

c.Rub the technical parameter of the roller;

d.Rub fixed end and floating end of the bearing of the roller.










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