BLD10-17-0.75KW cycloidal pinwheel reducer base leveling and fixing steps
BLD10 is a horizontal cycloidal pinwheel reducer (B stands for cycloidal pinwheel, L stands for vertical installation and is derived from horizontal type, D stands for motor direct connection, and 10 is the frame number). The 0.75KW power model has a small load. The fixed core is to ensure that the anchor bolts are evenly stressed, the frame has no stress deformation, and anti-loosening measures are in place. The specific operations are as follows:
1. Confirm the leveling status and clean the fitting surface
Before fixing, use a level to re-test the longitudinal and transverse levelness of the machine base to ensure that the error is ≤0.05mm/m; clean the oil dirt and iron filings between the bottom surface of the reducer base, the installation foundation and the pads to ensure that there is no gap in the fitting surface and avoid warping of the machine base after tightening.
2. Pre-tightening of anchor bolts (diagonal tightening method)
Adopt the diagonal step-by-step tightening principle and operate in the order of 'upper left - lower right - upper right - lower left' to avoid deformation of the machine base caused by unilateral force.
The first pre-tightening torque is controlled at 30% of the rated torque. After pre-tightening, use a level to re-test the level. If there is a deviation, correct it by adjusting the thickness of the pad iron. It is prohibited to tighten the bolts to force leveling.
The anchor bolts supporting the BLD10 model are generally M10-M12 specifications, and the reference rated torque value is 15-25N·m. For details, please refer to the equipment manual.
3. Pad iron fixing and gap inspection
The adjustment pads must fit perfectly with the base plate and foundation surface. Check with a 0.05mm feeler gauge. The insertion depth shall not exceed 1/3 of the width of the pads. If there is a gap, replace the pads with appropriate thickness. It is prohibited to stack and fill with thin shims (no more than 2 pieces at most).
For working conditions with shock absorption requirements, a rubber shock-absorbing pad matching the machine model can be installed under the pad iron. The thickness of the shock-absorbing pad must be uniform to avoid affecting the level of the machine base.
4. Final tightening and anti-loosening treatment
Carry out the second tightening in diagonal order, increase the torque to 70% of the rated torque, and perform the third full torque tightening after re-testing that the levelness shows no change.
After tightening, install anti-loosening components: M10-M12 bolts should preferably use spring washers + anti-loosening nuts, or apply thread locking agent (such as 243 medium-strength locking agent) to prevent the bolts from loosening due to vibration during equipment operation.
For outdoor or humid environments, it is necessary to apply anti-rust grease on the bolt head and nut surface, and install a protective cover.
5. Post-installation verification
Manually turn the output shaft of the reducer to ensure flexible rotation without stagnation or abnormal noise.
Conduct a trial run with power on and no load for 10-15 minutes. After stopping, check that the anchor bolt torque has no attenuation and that there is no relative displacement between the machine base and the foundation, which means the fixation is qualified.
Things to note
It is prohibited to use welding to fix the base or pads to avoid high temperatures causing deformation of the reducer base and damage to the internal bearings.
If the installation foundation is made of concrete, it is necessary to embed anchor bolts in advance or use expansion bolts. The load-bearing capacity of the expansion bolts must match the operating load of the reducer.
