How to determine whether the installation accuracy of MBY800-7.1 gear reducer meets the standard

To determine whether the installation accuracy of MBY800-7.1 gear reducer meets the standard, a comprehensive evaluation is required through three dimensions: static inspection, dynamic verification, and data benchmarking. The specific methods are as follows:
1、 Static inspection (physical state verification after installation)

Base and fixation

Levelness: Use a level with an accuracy of 0.02mm/m to measure the upper plane of the gearbox body, and the longitudinal (axial direction) and transverse (vertical axis direction) errors should be ≤ 0.1mm/m

Bolt tightening: Tighten the base bolts according to the manual torque (such as M24 bolt torque ≥ 300N · m), and use a feeler gauge to check that the gap between the base and the foundation is ≤ 0.1mm

Accuracy of alignment

Radial deviation<0.05mm, axial deviation<0.2mm/m

When using a laser centering instrument or dial gauge for measurement, a thermal expansion gap of 0.1-0.3mm should be reserved when connecting the coupling

The coaxiality of the input/output shaft must meet the following requirements:

Sealing and lubrication

The shaft end oil seal has no leakage (no oil droplets after wiping with a tissue), and the breathable cap has smooth ventilation

The oil level is at the middle mark of the oil gauge, and the oil quality is clean and free of impurities (L-CKD 320 lubricating oil is recommended)

2、 Dynamic verification (monitoring of trial operation data)

No load test run (1-2 hours)

Monitoring noise (≤ 85dB (A)), vibration (≤ 2.5mm/s), and temperature rise (oil temperature ≤ 80 ℃)

Abnormal noise or vibration may indicate poor gear meshing or bearing wear

Load trial operation (25% -100% step loading)

Gradually load to rated torque, observe transmission efficiency (motor current fluctuation ≤ 10%) and temperature rise curve

If there is periodic vibration or sudden increase in current, it is necessary to check the gear meshing marks (contact area ≥ 70%)

3、 Key indicator benchmarking

Gear meshing accuracy

Tooth pitch deviation ≤± 0.005mm (high-precision scenario), tooth profile deviation ≤± 0.008mm

Mesh imprint method: After applying red lead powder, mesh and the contact area should be located in the middle of the tooth surface without edge contact

Lubrication system

Stable oil pressure (oil supply pressure at the lubrication station 0.4MPa ± 10%), filtration accuracy ≤ 0.08mm

4、 Maintenance suggestions

Re measure the alignment accuracy and gear wear every 6 months (tooth thickness reduction ≤ 10%)

Regularly replace lubricating oil (after 2000 hours or when the oil is emulsified)

The above method can systematically evaluate the installation accuracy and ensure the long-term stable operation of the equipment.