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Device method for large motor bearing housing
Source: China Bearing Network Time: 2014-09-09
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ㄒ唬5. 亟 莞 莞 è€ 1〠1〠1〠1〠1〠1〠1〠1〠紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固 紧固The practical length of the hole and the length of the check screw can be appropriate. The anchor plate should be closely attached to the base; the anchor screw should be straight with the anchor plate.
2, the most common screw for the foot screw is double screw; the device is convenient; there is also a screw with a T-shaped shape; the screw of this kind is laid down from the top; the screw is placed in the in-line hole of the anchor plate Then rotate the 900 screw to be locked by the anchor plate. Before the screw is tightened, the lubricant should be pre-coated on the thread.
Ç—5. The bottom plate of the large motor is mounted; it is usually welded by steel plate; or it is welded by I-beam and channel steel.
The bottom plate of the motor has the whole; there are also blocks. Their function is to support the motor; and the dynamic and static load of the motor is transmitted to the base; and the scale and the gap of the motor and some devices are kept unchanged.
1. Remove the oil before the bottom plate device; remove the anti-rust paint. Especially in the connection with cement irrigation; use a paint remover and a steel brush to clean it; then wipe it with a cloth; the best one can pre-brush a layer of cement slurry. .
2. In the clearing of the bottom plate, it should be noted whether the bearing seat surface and the stator base device surface can be scratched or rusted; if similar defects are found, use enamel and sandpaper to trim.
3. The bottom plate of the new device should have strict requirements on the base; the base should be solid; under the condition of accepting static load and dynamic load; the bottom should not sink. To avoid the sinking of the motor root; generally under the root irrigation After the preloading is carried out; the preloading component is generally 1.5 to 2.5 times of the component of the motor device. The elevation is continuously measured during the preloading process; the sinking condition is investigated; the device is allowed to be dried after the basement is stopped. For example, The steel plant pre-presses the root at the beginning of the rolling mill motor of the 1150; the pre-pressing component is about twice the total weight of the motor; after 48 hours, the root sinking is 2 mm.
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