6.6　High Pressure Roller Grinding

6.6.1　The installation of base shall be in accordance with the following requirements:

1　After installing the base in place，the clearance between the base and the sizing block shall be checked with a feeler gauge；the clearance shall be less than 0.05mm，and the contact area shall be no less than 80%；

2　Adjust the elevation and levelness of two bases.The allowable deviations for elevation shall be±0.5mm and the maximum allowable deviation for levelness shall be 0.05/1000；

3　The pre-tightening force of bolts shall meet relevant requirements of design documents and current national standard GB 50231 General Code for Construction and Acceptance of Mechanical Equipment Installation Engineering.

6.6.2　The installation of frame shall be in accordance with the following requirements:

1　After installing the base in place，tighten the bolts connecting the frame and the base and check the contact between the base and the frame shall be checked；it shall be deemed qualified when a 0.05mm feeler gauge cannot be inserted in；

2　The roller sliding rail of frame shall be cleaned and free of burr and damage，and it shall be ensured that the sliding rail surface is clean；

3　Check the levelness of working surface.The maximum allowable deviation shall be 0.05/1000.

6.6.3　The installation of transmission mechanism shall be in accordance with the following requirements:

1　The maximum allowable deviations for longitudinal and horizontal centerlines shall be 2.0mm，and the maximum allowable deviation for levelness of motor shall be 0.2/1000；

2　The maximum allowable deviation for coaxiality of main motor and reduction gear shall be 0.2mm.

6.6.4　Test run shall be in accordance with the following requirements:

1　No-load test run shall meet the requirements of Article 3.0.11 in this code；

2　No-load running time shall not be less than 5h，and equipment shall be free of abnormal sound and vibration.