For the maintenance of the centrifugal compressor thrust bearing
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Thrust bearing thrust clearance comply with the design requirements.
B. thrust tile
(1) thrust tile babbit layer should be based, wear, crack, burn, crushing, defects such as hair, erosion and galvanic. Segment after coloring or dipped kerosene examination, babbitt combined with matrix metal.
(2) thrust tile surface are not allowed to exist along the radial grooves or scratches, circumferential grooves or the depth of the scratch should not more than 0.01 mm.
(3) trace the tile same group to work should be roughly equal, such as uneven uneven working trace explain tile bearing, should find the reason.
(4) with red lead to check each individual segment of babbitt thrust plate surface and the surface contact, contact area should be no less than 80%, port group tile thickness deviation should be no more than 0.01 mm.
(5) the back of the tile carrying surface is smooth, without burning, such as agglutination and creasing overloading traces.
(6) the limit pin fixation is reliable, pin and pin hole no wear and tear. After assembly tile swinging free.
(7) with thermal element thrust tile, check the temperature sensor in the segment internal fixation firmly, temperature fuses shall not influence the swaying flexible segment. Thermosensitive element and lead along with tile by instrument examination, insulation and accuracy of measurement in accordance with instrument specifications.
C. the base ring and a block level
(1) level piece of carrying surface is smooth, no wear, burning, indentation, such as overloading traces, swing freely within the base ring, BuKa acerbity. Stop pin length is appropriate, fixed firmly, and level of pin hole has enough clearance, not the top equalizing, unbiased ground pin hole.
(2) standard piece of face each other contact line between no indentation, smooth surface, after assembly level piece of swinging free.
(3) the base ring without the gourd ladle flexure deformation, two basic ring in combination with smooth surface good mouth, and with no indentation level block contact, base ring and thrust bearing shell on the back end face pressure evenly. Base ring on the turn key is good, the corresponding keyway without any abrasion.
D. thrust plate
(1) the thrust plate of the surface is bright and clean level off, the surface roughness Ra value is less than 0.8 m, do not allow the existence of radial trench, circumferential groove depth should be no more than 0.05 mm.
(2) by the linkage of thrust plate, key and keyway without extrusion marks, inspection check no crack in the keyway. Thrust plate contact with shoulder and back end face evenly, key in the thrust plate of keyway cooperate proper, side clearance, tip clearance and thrust plate and shaft between cooperate to comply with the design requirements. After assembly of the thrust plate of end face all beat is less than 0.015 mm.
(3) using hydraulic disassembling thrust plate structure, should check the thrust disc hole and shaft surface contact, check the thrust plate of end face and shoulder the contact situation, should not be less than 80%. The surface without burr, scratch, damage, thrust disc hole and shaft dimension no difference.
(4) thrust plate thickness deviation is less than 0.01 mm along the circumference.
(5) thrust bearing gap gaskets for a piece, should be smooth level off, the thickness error is less than 0.01 mm along the whole week.
(6) oil slinger diameter matching is appropriate, not loose.
Wash bearing box (7), the drainage hole to accord with bearing oiling hole and smooth traffic.
234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984
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A. the thrust clearanceThrust bearing thrust clearance comply with the design requirements.
B. thrust tile
(1) thrust tile babbit layer should be based, wear, crack, burn, crushing, defects such as hair, erosion and galvanic. Segment after coloring or dipped kerosene examination, babbitt combined with matrix metal.
(2) thrust tile surface are not allowed to exist along the radial grooves or scratches, circumferential grooves or the depth of the scratch should not more than 0.01 mm.
(3) trace the tile same group to work should be roughly equal, such as uneven uneven working trace explain tile bearing, should find the reason.
(4) with red lead to check each individual segment of babbitt thrust plate surface and the surface contact, contact area should be no less than 80%, port group tile thickness deviation should be no more than 0.01 mm.
(5) the back of the tile carrying surface is smooth, without burning, such as agglutination and creasing overloading traces.
(6) the limit pin fixation is reliable, pin and pin hole no wear and tear. After assembly tile swinging free.
(7) with thermal element thrust tile, check the temperature sensor in the segment internal fixation firmly, temperature fuses shall not influence the swaying flexible segment. Thermosensitive element and lead along with tile by instrument examination, insulation and accuracy of measurement in accordance with instrument specifications.
C. the base ring and a block level
(1) level piece of carrying surface is smooth, no wear, burning, indentation, such as overloading traces, swing freely within the base ring, BuKa acerbity. Stop pin length is appropriate, fixed firmly, and level of pin hole has enough clearance, not the top equalizing, unbiased ground pin hole.
(2) standard piece of face each other contact line between no indentation, smooth surface, after assembly level piece of swinging free.
(3) the base ring without the gourd ladle flexure deformation, two basic ring in combination with smooth surface good mouth, and with no indentation level block contact, base ring and thrust bearing shell on the back end face pressure evenly. Base ring on the turn key is good, the corresponding keyway without any abrasion.
D. thrust plate
(1) the thrust plate of the surface is bright and clean level off, the surface roughness Ra value is less than 0.8 m, do not allow the existence of radial trench, circumferential groove depth should be no more than 0.05 mm.
(2) by the linkage of thrust plate, key and keyway without extrusion marks, inspection check no crack in the keyway. Thrust plate contact with shoulder and back end face evenly, key in the thrust plate of keyway cooperate proper, side clearance, tip clearance and thrust plate and shaft between cooperate to comply with the design requirements. After assembly of the thrust plate of end face all beat is less than 0.015 mm.
(3) using hydraulic disassembling thrust plate structure, should check the thrust disc hole and shaft surface contact, check the thrust plate of end face and shoulder the contact situation, should not be less than 80%. The surface without burr, scratch, damage, thrust disc hole and shaft dimension no difference.
(4) thrust plate thickness deviation is less than 0.01 mm along the circumference.
(5) thrust bearing gap gaskets for a piece, should be smooth level off, the thickness error is less than 0.01 mm along the whole week.
(6) oil slinger diameter matching is appropriate, not loose.
Wash bearing box (7), the drainage hole to accord with bearing oiling hole and smooth traffic.
