Treatment method and lubrication of gear coupling failure
Gear coupling processing method: This kind of fault processing is more difficult, and it needs to stop production processing, that is, re-align, or re-align the reducer side, or re-align the reel side.
First find out the part with larger offset error, so first measure the side of the coupling that is offset, that is, measure the levelness and coaxiality of the main shaft and the level and coaxiality of the reducer main shaft, and then press the quality again. The fault can be eliminated by leveling and aligning the scale.
When the measured concentricity deviation of the coupling is 2n and the reducer side is low, the coupling of the lifting accessories cannot work, and the axial displacement of the inner gear ring exceeds the tooth width. After surveying and calculating, the reducer should be re-according to the quality scale After correcting and adjustment, the operation is normal and the fault is eliminated.In addition, the horizontality and concentricity of the two shafts have a large error, which causes the coupling to be awkward when rolling.
The reason for the gear wear of the above-mentioned lifting fitting coupling is basically similar. In addition to the normal force, the connecting bolt is also subjected to additional bending moment, which causes it to break.This is the main reason. This kind of reason usually occurs due to the large level difference between the left and right sides of the reducer main shaft.Furthermore, bolts with small diameters, insufficient strength, or poor bolt materials can also cause bolts to break.
XNUMX. Gravity lubrication.The lubricating oil is injected from the nozzle, flows through the gear backlash, and flows out from the small hole of the sleeve. This lubrication method mainly plays a cooling role, and it is difficult to form an oil film. The tooth surface wears faster than the following strong lubrication.
XNUMX. Powerful lubrication.The lubricating oil is sprayed into the small holes at the bottom of the gear teeth, and the oil enters the meshing surface under the action of centrifugal force to play the role of lubrication and cooling.The oil flows out from both sides of the tooth after passing through the meshing surface.With this type of lubrication, the oil circulates continuously, impurities flow out, and the injected lubricating oil causes a certain pressure to enter the gear tooth meshing surface under the action of centrifugal force, so it has a better lubrication and cooling effect and is suitable for high-speed and heavy-duty occasion.
XNUMX. Oil storage lubrication.The lubricating oil is injected from the nozzle, and a certain lubricating oil layer is maintained on the outer circle of the gear due to the centrifugal force of the lubricating oil during rotation.This kind of lubrication will leave the magazine in the ring gear, and the heat dissipation effect of the oil flow is also poor, so it is only suitable for occasions with low power and low speed.There is also a non-flowing oil storage lubrication method belonging to this type, which is to pour grease into the inside and seal it, and wash it regularly.
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