Let me help you outline the key steps for installing a shaftless screw conveyor. The core points are threefold: a stable foundation, accurate assembly, and meticulous debugging.
I. Pre-installation Preparation
**Personnel and Tools:** Ensure operators are familiar with the equipment structure and prepare tools such as wrenches, screwdrivers, electric drills, and laser levels.
**Environment and Drawings:** Clean the installation site and lay out the infrastructure according to the design drawings.
**Equipment Inspection:** After unpacking, inspect the casing, blades, bearing housings, and other components for deformation or rust. Ensure the matching motor and reducer are properly sealed.
II. Foundation Installation
**Foundation Pouring:** Complete the concrete foundation pouring 20 days in advance, ensuring the strength reaches at least 80% of the design value.
**Foundation Fixing:** Ensure the foundation can reliably support the conveyor, preventing subsidence or deformation during operation.
III. Main Unit and Support Installation
**Main Unit Positioning:** Fix the main unit to the foundation and adjust it to be level, with a deviation not exceeding 0.5 mm per meter.
**Bracket Installation:** Install the brackets, ensuring the conveyor height and angle meet design requirements.
IV. Transmission System Installation
**Motor Connection:** Connect the motor to the main unit, ensuring the transmission system operates normally.
**Coaxiality Adjustment:** Ensure the alignment difference between the reducer output shaft and the screw main shaft is ≤0.1mm, and the coupling clearance is controlled within 2-3mm.
V. Trial Run and Debugging
**No-load Test Run:** Run continuously for 4 hours, checking bearing temperature rise (≤35℃), reducer oil temperature (≤65℃), and for any abnormal vibration or noise.
**Load Debugging:** Gradually increase the load to verify conveying efficiency and stability, monitoring current fluctuations (range ≤5%).
VI. Key Precautions
**Sealing:** Check the sealing of all connections; add waterproof material if necessary.
**Safe Operation:** Strictly follow explosion-proof and protection requirements for wiring.
VII. Common Problem Handling
**Fault:** Immediately stop the machine, clean up any tangled material, and never use metal tools.
Installation Deviation: Adjust the shims between the housing flanges to eliminate accumulated deviations.
VIII. Post-Installation Inspection
Lubrication Check: Confirm that all oil reservoirs have sufficient lubricating oil.
Tightening Check: Check that all connecting screws are tightened reliably.
Functional Check: Verify that the inlet and outlet are installed tightly and without gaps.
