The search vibration can be carefully checked in the operating state, shutdown state and disintegration respectively, analyze the various factors that may cause vibration, and then conduct tests according to the analysis and finally determine the cause of the vibration.
In the running state, focus on checking: Measure the vibration value of bearings, bases, foundations, etc., and compare with the original records to find the doubt points; whether there is any change in the operating parameters and the original design; the oil temperature, oil volume, and oil pressure of the bearing bushes Whether the quality of the oil is within the normal value; whether there is any sound in the rotating part, especially the friction sound and impact sound of the metal should be paid special attention; whether the expansion is even in each part, and compared with the cooling after the stop; whether the anchor bolt is loose or displaced Whether the foundation is sinking, inclined or cracked; in the process of starting and stopping, whether there is a change in resonance speed and amplitude; what abnormal operation phenomenon has occurred.
After shutdown, check the followings: Is the clearance and tightness of the sliding bearing normal? Are there any abnormalities in the contact and running-in of the lower bearing? Whether the rolling bearing is damaged or not? Is the fit of the inner and outer rings loose? Is there a change in the center of the coupling?
After dismantling, check the key points: whether the original balance block is detached or has displacement; whether the parts on the swivel are loose or not; if there are wrongly installed and leaked parts; whether the dynamic and static clearances are normal, whether there are traces of friction, or the bending values ​​of the measuring shafts. The degree of wear of the swivel; whether the media channel is clogged and rust scale; whether the unit level, rotor lift has any change; whether the motor rotor has loose parts, whether the air gap is normal, whether the electrical part has the defects caused by vibration, such as magnetic center Dislocation, large string value and so on.
This kind of Hand Mask Hot Selling High Moisture Hand Whitening Mask
contains sheep placenta essence, can provide hand skin with adequate nutrients
and moisture effectively, hydrating and moisturizing, antioxidant, prevent the
skin of rough, make hands soft, moist. At the same time, it helps moisturizing
and repair skin.
[Precautions ]
Skin wounds, swelling, itching, inflammation and other anomalies, do not use; sensitive skin with caution; the skin is not suitable for use during use
Please stop using; put in a dry and ventilated place, to avoid contact with children; open as soon as possible after use.
Hand Mask Glove,Rose Essence Hand Mask Glove,Soften Skin Hand Mask Glove,Hand Peeling Mask Glove
Hebei Houde Hanfang Medical Devices Co., LTD. , https://www.hodafhealth.com