What are the specific cleaning methods for dust and impurities entering the Hanyi ball spline

1. Disassembly and cleaning method
Completely disassembling the ball spline: When there is a lot of dust and impurities that seriously affect the performance of the ball spline, the first step is to completely remove the ball spline from the equipment. During the disassembly process, it is important to record the installation position and sequence of each component for proper installation in the future. For example, for ball splines with preload requirements, the adjustment position and status of the preload device should be recorded.
Cleaning tool selection: Use appropriate cleaning tools to clean the various components of the ball spline. For ball bearings, a small brush such as a soft bristled toothbrush can be used to gently brush away dust and impurities on the surface of the ball bearings. For the raceway of the spline shaft and spline sleeve, a clean non-woven fabric or cotton ball dipped in an appropriate amount of cleaning solvent can be used for wiping. Cleaning solvents can be selected from specialized precision instrument cleaners or aviation kerosene, which can effectively dissolve oil stains and impurities without causing corrosion to the material of the ball spline.
Cleaning and drying: Soak and clean the brushed ball bearings, wiped shafts, sleeves, and other components in a clean solvent. After cleaning, use clean compressed air to blow dry all components to ensure there are no residual solvents or impurities. During the drying process, it is important to adjust the pressure of the compressed air to avoid blowing the balls away due to excessive pressure.
2. Partial disassembly and cleaning method
Partial disassembly of ball spline housing or seal: If the structure of the ball spline allows, only the housing or seal can be disassembled without completely disassembling the entire ball spline, exposing the internal balls and raceways. For example, for some ball splines that use detachable housings or sealing covers, the housing can be opened by unscrewing screws or loosening buckles.
Combining vacuuming and blowing: Use a small vacuum cleaner to align the suction nozzle with the exposed ball spline inside, and remove visible dust and impurities. Then, use clean compressed air to blow the interior out impurities hidden in corners or gaps. During the blowing process, the spline shaft can be rotated appropriately to allow the ball to roll, thereby cleaning all parts more comprehensively.
After cleaning, check and reseal: After cleaning, carefully inspect whether there are any residual impurities inside the ball spline. After confirming cleanliness, reinstall the casing or seal to ensure a secure installation and good sealing, preventing dust and impurities from entering again.
3. In situ cleaning method (applicable to mild pollution situations)
Use of cleaning spray and brush: In case of less dust and impurities, the method of in-situ cleaning can be used. Purchase special precision equipment to clean the spray, and aim the spray nozzle at the gap of the ball spline and the part where dust may enter. Then, use a small soft bristled brush to gently brush the surface of the ball spline, allowing dust and impurities to flow out with the cleaning solution.
Compressed air blowing assistance: After brushing, use clean compressed air to blow the ball spline, blowing away the cleaning solution and impurities together. Pay attention to the direction of blowing and try to keep impurities away from key parts of the ball spline, such as the contact area between the ball and the raceway.
Lubrication and functional inspection: After the in-situ cleaning is completed, an appropriate amount of lubricant can be applied to restore the lubrication state of the ball spline. Then manually rotate or move the ball spline in a small range to check if its movement is smooth and if there are any abnormal friction or jamming phenomena, to ensure effective cleaning and normal operation of the ball spline.