Since the slewing bearing of the truck with crane generally works under heavy load conditions, and the working environment of the truck with crane is relatively harsh, sometimes the slewing bearing will have abnormal sound. What should we do to eliminate this problem?
First of all, we should be clear that if the rotating bracket makes a small abnormal sound during the break-in period, it will automatically disappear in the near future. Because when the rotating bracket is idling soon after leaving the factory, there will be a sound of steel balls rolling evenly, which is a normal sound; in addition, the rotating bracket of the new device will automatically disappear after a while, regardless of whether there is a small abnormal sound. What we're talking about today is how to remove larger, more idiosyncratic anomalous sounds.
When the surface flatness of the equipment does not meet the requirements, the raceway will form a negative gap, and then abnormal noise will occur; otherwise, abnormal noise may occur when the pinion is not meshed well, which may constitute a broken tooth fault; in addition, when the equipment bolts are loose, the rotation The support is elastically deformed, and the deformation direction is negative. It is necessary to check and tighten the bolts immediately.
When foreign objects such as sand and iron filings exist in the slewing bearing, non-periodic vibration will occur, and the problem of insensitivity to rotation will occur. In this case, all bearings, shafts, seat holes and accessories must be strictly cleaned before installing the slewing bearing, and the foreign matter in the lubricant should be removed in time to eliminate the corresponding abnormal noise.
Due to the lack of lubricating grease, uneven lubricating grease, poor quality of lubricating grease, improper selection of lubricating agent, etc., the slewing bearing raceway has abnormal sound. To solve this problem, you can treat it with a suitable lubricant, fill and replace it in time.
Since the structure of the slewing bearing seal plays a key role in the seal, when the seal and the slewing bearing cannot be completely matched with the installation, it is easy to form a smooth oil leakage, so it is necessary to check whether the seal is worn.
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