ZT-527 roller life test bench operation instructions
Article from Qingdao Zhongbang Instrument Co., Ltd. Technology Department
experiment procedure
1. Open the belt box cover and observe and ensure that the V-belt is always in the pulley groove when installing the test roller.
2. Open the plexiglass cover of the test bench, loosen the V-block tightening bolts and the anchor anchor bolts, and pass the test rollers through the V-belts and install them in different V-grooves according to the diameter of the rollers. V-block tightening bolts.
3. Adjust the bottom waist hole of the multi-groove V-shaped block in parallel to the basic tension of the V-belt, fix the anchor bolts of the support, ensure that the triangle has a certain tension, and ensure the V-belt and the idler when the roller rotates. It won't slip.
4. Referring to the above steps, install another test roller on the other pair of V-blocks.
5. Power on the electrical control box. After adjusting the afterburner, cover the cover. In combination with "Load" and "Unload", the afterburner is loaded to the roller to display the F value ("Load" and "Unload" are jog, tap to load or unload, and the finger to leave the button to stop automatically). The specific force value description is detailed in Appendix A.
6. Power on the air compressor, adjust the outlet pressure to 0.5MPa, and the system automatically controls the circulating powder blowing. The default is 5 seconds per hour.
7. Slowly adjust the speed controller according to the following formula so that the roller runs at the specified speed.
f(Hz)=2.3×10-4×D idler×n test roller speed
f———————— Display value on the speed controller panel, unit: Hz
D roller —————— diameter of the tested roller, unit: mm
n Test roller speed ————test roller speed, unit: r/min
Note: When the frequency of the speed controller is less than 15Hz or greater than 60Hz, it is forbidden to let the motor run for a long time!
8. Press “Start of Testâ€, the control system will automatically control the roller running and blowing coal powder, and time the power protection. If you want to pause the test in the middle, press “Test pauseâ€, the idler will pause, the timing device will pause, and press the “test start†test again to continue!
9. One test (the total test time is set to 600 hours, press and hold the □ key on the instrument panel to check the remaining test time). After the completion, press the “time clear†test time to zero, you can restart the next round. test.
During normal operation, the test time is arranged on the meter as the idler running and stopping time, in minutes. The lower row is the time for circulating pulverized coal in seconds.
Precautions
1. Due to the variety of rollers, if the distribution belt does not match the test roller, please purchase the belt with the matching length!
2. During the operation, the belt should be guaranteed to have a certain tension to prevent the belt from slipping.
3. Pay attention to personal safety when installing the roller.
4. When a fault occurs, press the “Emergency Stop†button quickly and the system stops working. Then turn the air switch to OFF, unplug the power cord, and troubleshoot before continuing the test.
5, the instrument Zui large pressure value can not exceed 2.5KN.
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