10% Off Profiles,Nine-Fold Profile On Electrical Cabinet,Nine-Fold Profile Products,Nine-Fold Cold-Formed Profile Huai'an Senyu Intelligent Technology Co., LTD , https://www.jshasyzn.com
According to the probe gap of 2.75mm as the initial value and the probe is used to measure the settlement value of the bearing, the probe gap is greater than 2.75mm.2.75mm and 110mil is not in the linear range during the actual unit operation, and belongs to the nonlinear segment. Therefore, the settlement value greater than 2.75 mm cannot be correctly reflected. There are generally two ways to solve such problems: Method 1: Expand the linear range. You can choose a probe of 11mm or more. Because the linear range is determined by the operating voltage of the system and the diameter of the coil at the end of the probe. Usually the larger the coil, the wider the linear range. Method 2: Adjust the initial gap of the probe so that the measurement range is within the linear range. By discussing with the on-site representative of the unit, it is finally confirmed that the probe gap is 1.27mm, and its alarm value is 1.27mm 0.75Mmm=80.4mil. The probe gap is linear from 1.27mm to the alarm value of 2.02mm, which can correctly reflect the settlement value of the bearing. . At the same time, the range of the indicator needs to be re-adjusted to meet the measurement requirements.
Vibration of the unit housing and cable selection During the reciprocating unit test, the indication value of the vibration meter of the housing fluctuated. This problem is mainly caused by the installation and cable selection problems. The vibration sensor is contact-type and is fixed to its entire base. Due to the lack of careful surface finish and flatness treatment of the fixed base during the installation process, as well as errors in the selection and fixing of the connected cables, the sensor is not level with the mounting surface, causing resonance. At the same time, local deformation of the outer casing affects its response characteristics due to excessive installation torque. There is cable jitter in cable selection and fixing, electrical noise is generated, caused by changes in cable capacitance, and the resulting spurious interference signal is superimposed on the useful vibration signal.