Adjusting the axis core of the input shaft and output shaft of the ZL600-31.5-2 reducer is mainly to ensure its coaxiality with the connected drive shaft and load shaft. The specific steps are as follows:
1. Preparation
Tool preparation : Prepare tools such as coaxiality measuring instrument, laser centering instrument, dial gauge, feelter, gasket, wrench and other tools.
Check components : Check the reducer and related connecting components (such as motor shaft, coupling, load shaft, etc.) for damage, wear or deformation, etc. to ensure that all components are normal.
Preliminary centering : Before installing the reducer, first conduct preliminary centering of the connecting parts, determine their approximate position, and lay the foundation for subsequent precise adjustments.
2. Install the reducer and measure the deviation
Install the reducer : Fix the reducer to the installation base or frame according to the design requirements to ensure a firm installation.
Measure coaxiality : Use a laser centering meter to detect the coaxiality between the input shaft and the motor shaft, the output shaft and the load end. You can also use a dial gauge and a feeler gauge to measure the angular deviation and shaft deviation of the shaft. If you use a dial gauge to measure, the two halves of the coupling are rotated 180 degrees at the same time to eliminate surface errors. Divide the deviation value displayed by the dial gauge pointer by 2, which is the value of the axis deviation. Calculate the average value of the two differences to obtain the angular deviation.
3. Adjust the axis line
Adjust position : According to the measurement results, change the position of the reducer by adjusting the mounting bolts or base of the reducer, so that the axis line of the input shaft and the output shaft overlap as much as possible. If the coaxiality error is large, it may be necessary to move the reducer significantly.
Use gaskets : Add or reduce gaskets between the reducer base and the mounting surface to fine-tune the height and angle of the reducer for better coaxiality. The thickness of the gasket shall be determined based on the measured deviation value.
Measure again : After each adjustment, use the measurement tool to check the coaxiality again to ensure that the adjustment direction is correct and the deviation gradually decreases. Repeat the gasket thickness and position of the shift reducer until the coaxiality meets the requirements. Generally speaking, the radial deviation should be controlled within 0.05mm, and the angle deviation should be ≤0.1°.
4. Consider thermal expansion factors
Since the reducer generates heat during operation, resulting in the axial rise and the axis center distance expanding, the impact of thermal expansion should be considered during adjustment. Normally, the centers of the high-speed and low-speed shafts of the reducer are slightly lower than the centers of the motor shaft and driven shafts to compensate for thermal expansion during operation. For specific compensation values, please refer to the technical manual of the reducer or relevant standards.
5. Final inspection and fixation
Comprehensive inspection : After the adjustment is completed, check the installation of the reducer again, including whether the bolts are tightened and whether the coupling is connected well.
Trial operation : Before it is officially put into use, conduct trial operation and observe the operating conditions of the reducer, such as whether there is abnormal vibration, noise, etc. If problems are found, shut down and check in time and readjust the coaxiality.
