Use and maintenance of motor bearing
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Sliding bearing is used as main component of explosion-proof motor, the design and manufacturing technology has got great development in recent years. Has now developed into a product of Changshu, and serialization, standardization, generalization, a sliding bearing professional production plant. Sliding bearing used in explosion proof motor mainly has the following several types: A type end cap type spherical sliding, B type end cap type spherical sliding, seat type spherical plain bearings.
The 1.1 seat type spherical plain bearing
Seat type spherical plain bearing is based on the international standard ISO 11687-1 plain bearings-pedestal plain bearings-partl:pillow blocks "manufacturing" design, the standard and German standard DIN 31690 which is basically the same, see figure structure bearing 1, for large power low speed increased safety synchronous motor.
Fig. 1 sliding bearing type and structure
1.2 A type end cap type spherical plain bearing
A type end cover type sliding bearings are in accordance with the international standard ISO 11687-2 plain bearings-pedestal plain bearings-part2:side flangs "manufacturing" design, the standard and German standard DIN 31693 which is basically the same, see figure structure bearing of the 1 bearings for the horizontal structure, to stop outside the mouth location, the flange is fixed on the round end of the motor cover. A assembly end cap type spherical plain bearing is more difficult, more for the explosive motor YB series vibration.
1.3 B type end cap type spherical plain bearing
B type end cover type sliding bearings are in accordance with the international standard ISO 11687-3 "bearings-pedestal plain bearings-part3:contre flange bectrings plain" design, the standard and German standard DIN 31694 which is basically the same. Fig. structure bearing of the 1 bearings for the horizontal structure, outside the mouth location, the flange is fixed on the motor end cover assembly semicircular, B type end cap type spherical plain bearing is more convenient, more for increased safety motor box structure.
The structure characteristics of the 2 sliding bearing
Various types of sliding bearing used in explosion proof motor, although the installation mode and structure vary, but in addition to the bearing seat, the main components of the rest: bearing, oil ring, floating seal ring, bearing inner and outer cover, bearing insulation, ventilator has been standardized, universal, interchangeable. Block bearing materials for ductile iron, surface with radiating ribs, the supporting surface is a spherical internal. Bearing outer sphere is supported on the bearing seat, ensuring the tile body and bearing combine, the tile body is forged steel processing, and casting bearing alloy. Bearing with oil ring, work with the shaft to rotate, the lubricating oil from the oil pool with the work surface and the shaft bearing, self-lubricating can realize the explosion-proof motor. Floating seal ring by the meltable polyimide composites molding is the key of sliding bearing seal. Each sliding bearings with respirator, used for gas pressure cavity and external balance of the bearing, alleviate the pressure bearing oil mist chamber work. The insulation between the bearing and the bearing seat contact surface of A type and B type sliding bearing, a sliding bearing insulation between the bearing and the mounting plate.
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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1 main types of sliding bearingSliding bearing is used as main component of explosion-proof motor, the design and manufacturing technology has got great development in recent years. Has now developed into a product of Changshu, and serialization, standardization, generalization, a sliding bearing professional production plant. Sliding bearing used in explosion proof motor mainly has the following several types: A type end cap type spherical sliding, B type end cap type spherical sliding, seat type spherical plain bearings.
The 1.1 seat type spherical plain bearing
Seat type spherical plain bearing is based on the international standard ISO 11687-1 plain bearings-pedestal plain bearings-partl:pillow blocks "manufacturing" design, the standard and German standard DIN 31690 which is basically the same, see figure structure bearing 1, for large power low speed increased safety synchronous motor.
Fig. 1 sliding bearing type and structure
1.2 A type end cap type spherical plain bearing
A type end cover type sliding bearings are in accordance with the international standard ISO 11687-2 plain bearings-pedestal plain bearings-part2:side flangs "manufacturing" design, the standard and German standard DIN 31693 which is basically the same, see figure structure bearing of the 1 bearings for the horizontal structure, to stop outside the mouth location, the flange is fixed on the round end of the motor cover. A assembly end cap type spherical plain bearing is more difficult, more for the explosive motor YB series vibration.
1.3 B type end cap type spherical plain bearing
B type end cover type sliding bearings are in accordance with the international standard ISO 11687-3 "bearings-pedestal plain bearings-part3:contre flange bectrings plain" design, the standard and German standard DIN 31694 which is basically the same. Fig. structure bearing of the 1 bearings for the horizontal structure, outside the mouth location, the flange is fixed on the motor end cover assembly semicircular, B type end cap type spherical plain bearing is more convenient, more for increased safety motor box structure.
The structure characteristics of the 2 sliding bearing
Various types of sliding bearing used in explosion proof motor, although the installation mode and structure vary, but in addition to the bearing seat, the main components of the rest: bearing, oil ring, floating seal ring, bearing inner and outer cover, bearing insulation, ventilator has been standardized, universal, interchangeable. Block bearing materials for ductile iron, surface with radiating ribs, the supporting surface is a spherical internal. Bearing outer sphere is supported on the bearing seat, ensuring the tile body and bearing combine, the tile body is forged steel processing, and casting bearing alloy. Bearing with oil ring, work with the shaft to rotate, the lubricating oil from the oil pool with the work surface and the shaft bearing, self-lubricating can realize the explosion-proof motor. Floating seal ring by the meltable polyimide composites molding is the key of sliding bearing seal. Each sliding bearings with respirator, used for gas pressure cavity and external balance of the bearing, alleviate the pressure bearing oil mist chamber work. The insulation between the bearing and the bearing seat contact surface of A type and B type sliding bearing, a sliding bearing insulation between the bearing and the mounting plate.
