What are the requirements for the testing environment of durability verification of ZLY160-20-1 gear reducer

The testing environment for durability verification of ZLY160-20-1 gear reducer requires strict control of temperature, humidity, cleanliness, and mechanical installation conditions to ensure that the test results truly reflect the product's lifespan and reliability. The following are specific requirements:

1. Environmental temperature and humidity control

Temperature: The testing environment should be maintained within the range of (25 ± 3) ℃ to avoid extreme temperature interference with the test data. If special operating conditions need to be simulated, a programmable temperature control system can be used to achieve wide range temperature simulation from -40 ℃ to 120 ℃.

Humidity: The relative humidity should be ≤ 60% RH (without condensation). High humidity environments (>85%) may cause lubricant emulsification, metal component corrosion, and affect testing accuracy.

2. Cleanliness and protection level

The laboratory should be kept clean to prevent dust, metal particles, or corrosive gases from entering the interior of the gearbox, in order to avoid exacerbating wear or contaminating the lubricating oil.

It is recommended to use testing equipment with a protection level of IP65 or higher to ensure sealing and prevent external impurities from entering.

3. Mechanical installation and alignment accuracy

The reducer needs to be installed on a test bench with good rigidity, and the input/output shaft should be accurately aligned using a laser centering instrument. The radial runout tolerance should be ≤ 0.02mm/m to avoid additional stress caused by installation deviation.

4. Test load and operating conditions

Load mode: Magnetic powder brake or eddy current dynamometer is used to apply a constant torque load, and durability verification is usually carried out by continuous operation for 2000 hours at 100% rated torque.

Overload test: Partial validation includes 150% rated torque impact load, repeated 100 times to verify structural strength.

Start stop cycle: Simulate actual working conditions, perform a cumulative 5000 start stop operations, and evaluate fatigue life.

5. Monitoring and Data Collection System

Temperature monitoring: Use a multi-channel temperature inspection instrument (sampling rate ≥ 100Hz) to record the temperature rise of the shell and lubricating oil in real time. A bearing position temperature rise of ≤ 35K is considered qualified.

Vibration and noise: equipped with acceleration sensors, frequency response 0-10kHz, vibration values must comply with ISO10816-3 standard; Noise ≤ 75dB (A) (1 meter away from the device).

Efficiency and backlash: The rated point efficiency should be ≥ 94% (planetary type), and the return clearance should be ≤ 1arcmin.

Lubricating oil testing: Regular sampling and analysis of abrasive particle morphology using an iron spectrometer to achieve μ m level abnormal wear warning.

6. Check after testing

After the experiment is completed, a shutdown and disassembly inspection should be carried out, with a focus on evaluating gear pitting, bonding, bearing wear, and other conditions. The reliability should be comprehensively judged based on stress wave monitoring data.