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Installation and disassembly of the expansion sleeve coupling

2021-05-04 Page view 1052

The installation and disassembly of the coupling is an important link to ensure the normal operation of the equipment and extend the service life of the coupling。Detailed installation and disassembly are as follows:

Installation matters

  1. Preparatory work

    • Check whether the two axes of the prime mover and the working machine are concentric,The surface of the two shafts is clear of wrapping paper and bruises。

    • Check whether there is debris in the inner holes of the two half couplings of the expansion sleeve coupling,There is no damage to the edge of the inner hole。In case,Convergent shaft、Half coupling clean,The bruise was treated with a fine file。

    • Check whether the inner hole diameter and length of the two half couplings are the same as the prime mover、The diameter of the working machine corresponds to the length of the shaft extension。General selection time,Make the prime mover and working machine end half coupling length less than its shaft extension length10—30mmFor good。

  2. Preheating and installation

    • For ease of installation,Two half couplings can be placed120--150℃Preheat in the incubator or oil tank,Increase the size of the inner hole,Easy to load。

    • After installation, ensure that the shaft head can not protrude the end face of the half coupling,Flush is best。

    • Detect the distance between the two halves of the coupling,Measure along the two inner sides of the flange of the half coupling3--4The readings of the points are averaged,And the sum of the measured dimensions of the extension segment and the two diaphragm groups,Both error control in0—0.4mmWithin the scope。

  3. Alignment and fastening

    • Use a dial indicator to test the runout of the two half coupling flanges,When the outer circle of the flange is less than250mmThe time runout value should not be greater than0.05mm;When the outer circle of the flange is greater than250mmwhen,The run-out value should not be greater than0.08。

    • When installing bolts,Through the outside of the flange hole,From the outside of the big hole in the other flange,Put on the buffer jacket、Elastic washer、Twist on the nut,Tighten the nut with a wrench。If the installation is not suitable or remove and replace,The best thing is to turn freely。

  4. Pre-start check

    • Before activating the device,Check whether the nut of the coupling is loose or falling off,If necessary, tighten the nut with a wrench in time。

    • Start the device with no load1A few minutes later,Then open the load line valve;Stop in reverse order。

  5. Care and maintenance

    • Brush the outside of the coupling with oil once a month,To keep lubricated。

Demolition event

  1. Power off and ready

    • Before disassembly,Power must be turned off and disconnected,Avoid electric shock accidents。

    • Prepare appropriate tools and protective measures,Screw batch、hammer、Rubber mallet、solvent(Such as rusting agent)Etc.。

  2. Remove bolts and components

    • Loosen the bolts on both sides of the coupling,bushing、Torx sleeve、The casing and other components are removed one by one。

    • For bolts that have been rusted or greasy,The joint of the bolt and nut can be sprayed with solvent first,Let the solvent seep into the thread,Makes bolt removal easier。

    • If the bolt is difficult to remove,Heating method can be used,But the heating temperature is generally controlled at200℃below。

  3. Cleaning and inspection

    • The removed coupling needs to be inspected and cleaned for each part,Check for damage or wear,Timely repair or replacement if necessary。

    • Clean all parts of the coupling、Cleaning and quality assessment,To determine which parts can continue to be used,Which need to be repaired after use,Which ones need to be scrapped and renewed。

  4. Matters needing attention

    • Must be operated by qualified professionals,Follow the corresponding safety specifications and operating regulations。

    • The removed parts must be protected,To be used when reinstalling。

    • If you are not familiar with the operation process or find a problem,Always consult a professional or manufacturer technical support,Avoid unnecessary injuries and accidents。

Go through the above steps and precautions,It can ensure the correct installation and removal of the expansion sleeve coupling,Thus to ensure the normal operation of the equipment and extend the service life of the coupling。