To avoid damaging the cycloidal wheel during assembly, the key points are clean pairing, light assembly and alignment, hard knocking, 180° misalignment, no jamming throughout the process, and adequate lubrication. Here are the complete operating points:
1. Before assembly: cleaning and pairing (preventing bumps and misassembly)
1. Thorough cleaning: Use kerosene/cleaning agent to clean the cycloidal wheel, pin gear shell, eccentric bearing, spacer ring, etc. to remove burrs, iron filings, and oil stains; the tooth surface and bearing hole must be clean and free of impurities.
2. Pairing verification: Cycloids must be used in pairs; stack the two pieces and rotate them to make sure that the bearing holes, pin holes, and external tooth shapes completely overlap and appear as one piece when viewed from the front; mark the stamp/engraved surface (all facing up).
3. Appearance inspection: There are no bumps, cracks, or rust on the tooth surface, inner hole, and end face of the cycloidal wheel; if there is any damage, replace it in pairs immediately. Single piece replacement is prohibited.
2. Assembling: light assembly, alignment, and impact prevention (the most vulnerable link)
1. Direct hammering is strictly prohibited: Hard hammering with a hammer is prohibited on the cycloidal wheel, eccentric bearing, and output shaft; use copper rods, nylon rods, and hydraulic tools to gently press them in place; the output shaft is press-fitted with screw holes + pressure plates, and inward hammering is strictly prohibited.
2. Correct installation sequence:
The pin tooth shell is equipped with pin tooth pins and pin tooth sleeves to ensure free movement and even gaps.
Place the first cycloidal wheel (marked side up) and turn it manually to confirm that it meshes smoothly with the pin teeth.
Install the spacer ring and eccentric bearing (the balls completely enter the inner hole of the cycloidal wheel).
Install the second cycloidal wheel: the marked side faces upward, and it is strictly 180° misaligned with the first one (the upper tooth root faces the lower tooth top); check the phase with the mark to avoid installing it backwards.
Install the shaft sleeve and output end components; tighten the bolts diagonally step by step to prevent the housing from deforming and squeezing the cycloidal wheel.
3. Coaxiality and alignment: The input/output shaft is accurately aligned with the motor and load, and the error does not exceed the coupling compensation amount; to avoid abnormal wear of the cycloid gear tooth surface caused by unbalanced load.
