Ball Screw Bearings: Another Piece of the Motion Control Puzzle

The protective layer is fixed in the mill lodging utilizing the bolts embedded through the drum divider. At the point when the shield is eliminated, the drum is pivoted utilizing a winch and polyspast pulley square, or utilizing a unique versatile stuff engine. The upper covering plates are taken out above all else. The plates are eliminated utilizing a wedge driven in the middle of the plate and the drum divider.

During the plate establishment the lower a piece of the mill will be covered first, then, at that point the mill will be pivoted by 90°, the following drum region will be canvassed in the lower position, and this methodology is performed until every one of the plates are introduced. These plates are likewise introduced utilizing the line screw supports as the drum turns.

Because of the activity of effect stacks the bolt association of the size gear are released, teeth are worn, and the outspread and pivotal runouts are expanded. Little deformities of the teeth (breaks and imprints) are redressed by the structure up welding and emeried with an emery wheel. In the event that the teeth are worn to 30% of their thickness, the size gear will be turned by 180°, so the teeth work with the unworn side. To pivot the circumference gear, the mill drum will be introduced to the situation where the bigness gear connectors are in the level plane, after which the drum will be wedged up so that to keep it from development during the activities. When the drum and size gear spine association nuts are extricated, the size gear will be lifted utilizing raising gadgets, and eliminated to the maintenance inlet.

The spiral and pivotal runouts of the circumference gear after fix, reclamation or substitution will be checked as follows. The size gear outline will be separated into 8 to 10 equivalent parts along china Bearing for f1600 pump the generatrix of the cog wheels, and markers will be introduced at the bigness gear end. The drum will be successively pivoted by one division, and the hole between the markers and the size gear will be estimated in each position of the circumference gear. The passable outspread runout of the size gear is 1 mm, and the allowable hub runout is 1.5 mm.

The bearings will be fixed by the system set up for the contact type bearings. The bearings dismantling technique comprises of the accompanying stages. The bearing organ seals, bolts and bearing covers will be taken out. A cribbing and a jack will be introduced under the drum. The drum will be lifted utilizing the jacks (or other raising gadgets), wedged out on the lodgings, and the jacks will be delivered. It is denied to leave the lifted drum on the jacks without fixing. Then, at that point the liners will be thrown and taken out with pivot around the diary. The bearings are collected in the opposite request.

The drive belts will be supplanted at the same time as indicated by the detail. The belt pressure will be moderate, the engine misalignment being prohibited as it can bring about the belt lapping.

The mill will be tried after the maintenance.

The mill test strategy is as per the following. The unit trial of the electric engine, belt-and-pulley drive, gears, oil framework (the entire unit without charging the balls into the mill) will be directed for 2 hours. The test will remember checks for impacts for the stuff set, break of oil through the bearings, increment of the temperature of the bearing congregations (it will not surpass 15 to 20°), vibration of the drive gear bearing, pulleys and engine (close to 0.1 mm).

Then, at that point mill load test is performed. First 25% of balls are charged during 20 min. spat, then, at that point the heap will increment to 100%, the altercation being additionally 20 min. On the off chance that no glitches are distinguished, the mill is acknowledged after fix with issue of the declaration.

After fix the ball mill will follow all details and execution models as indicated by its testament and activity manual.

Avoidance of the untimely hardware wear and support of its operable condition during booked fixes. As entire, the arrangement of preventive and booked fixes is intended for keeping up with the gear operable, for example it will guarantee operability of the hardware while protecting its high limit. Additionally, the planned fixes permit disseminating the maintenance group responsibility consistently, improving the maintenance quality and diminishing the maintenance costs.

The Samara Strommashina plant has been producing the ball mills of various plans since 1942 and has a huge encounter of activity with this kind of milling gear. Our experts are prepared to give any help with diagnosing any breakdowns of your ball mill.