How to set the vibration alarm value for RX87-4.1-7.5KW helical gear reducer

The core of setting the vibration alarm value for RX87-4.1-7.5KW helical gear reducer is to determine the threshold of vibration speed step by step based on equipment parameters and operating conditions. Below, I will help you outline the specific methods:

1、 Clarify equipment parameters and standards

Rated speed: First confirm the rated speed of the reducer (such as 1500r/min), and different speeds correspond to different vibration limits.

Industry standard: Refer to ISO 10816 or manufacturer's manual, for example, the vibration speed of ordinary motors usually does not exceed 4.5mm/s.

2、 Step by step setting of alarm values

Measure vibration values
Use a vibration tester to measure the vibration velocity during operation (unit: mm/s), paying attention to distinguishing between light load, rated load, and heavy load conditions.

Set classification threshold

Warning value: set as 1.2-1.5 times the benchmark value (e.g. benchmark value 2.5mm/s, warning value 3-3.75mm/s).

Alarm value: set to 1.5-2 times the reference value (e.g. reference value 2.5mm/s, alarm value 3.75-5mm/s).

Emergency value: If it exceeds 4.5mm/s, stop the machine immediately.

Dynamic adjustment
Adjust the threshold based on load changes (such as fluctuations in ore volume during mining) to avoid false alarms.

3、 Precautions

Sensor selection: Choose explosion-proof and impact resistant vibration sensors, such as speed type transmitters (range 0-20mm/s).

Installation specifications: Sensors should be installed at vibration sensitive points such as bearing seats or motor housings, away from electromagnetic interference.

Data calibration: After a new machine or major overhaul, run it at rated load for 72 hours, record data every 5 minutes, and take the average as the reference value.