TÀI LIỆU Hướng dẫn bảo trì máy nghiền liệu - Roller Mill Mechanical Maintenance (Polysius Headquarters - Germany)

Replacement of the roller tire
Lay the roller pair unit horizontally on its side. Remove the nuts from studs (26) and force off the clamping ring (27) by means of the forcing screws. The roller tire can now be lifted off. If the roller tire (25) has got stuck on the roller body (8) and cannot be pulled off by means of customary fitting tools, the roller tire may also be sprung off.
In this case proceed as follows:
Locally heat up the roller tire (25) by means of a welding torch,
Then cool the heated areas with water (quenching).


 Polysius personnel must be present at the first time.
Prior to the assembly all parts must be checked and cleaned.

To guarantee the pre tensioning of the grinding roller bearings,  the distance of the inner rings of the bearings (dimension „X”) must  be checked with the auxiliary device  (40).

For this purpose the bearing must be put into a condition without bearing clearance.

LINK DOWNLOAD

Replacement of the roller tire
Lay the roller pair unit horizontally on its side. Remove the nuts from studs (26) and force off the clamping ring (27) by means of the forcing screws. The roller tire can now be lifted off. If the roller tire (25) has got stuck on the roller body (8) and cannot be pulled off by means of customary fitting tools, the roller tire may also be sprung off.
In this case proceed as follows:
Locally heat up the roller tire (25) by means of a welding torch,
Then cool the heated areas with water (quenching).


 Polysius personnel must be present at the first time.
Prior to the assembly all parts must be checked and cleaned.

To guarantee the pre tensioning of the grinding roller bearings,  the distance of the inner rings of the bearings (dimension „X”) must  be checked with the auxiliary device  (40).

For this purpose the bearing must be put into a condition without bearing clearance.

LINK DOWNLOAD

Chuyên mục: C. Bài giảng C. Bài giảng chuyên ngành Cơ khí - Chế tạo máy (Mechanical & Manufacturing Engineering) C. Bài giảng kỹ thuật