ZT-515 roller dustproof performance test bench operation instructions Article from Qingdao Zhongbang Instrument Co., Ltd. Technology Department Steps 1. After numbering the tested rollers, weigh them on the electronic scale and make a record. 2. Open the belt box cover and observe and ensure that the V-belt is always in the pulley groove when installing the test roller. 3. 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. 4. 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. 5. Referring to the above steps, install another test roller on another pair of V-blocks. 6. Put dust into the test box box according to the standard requirements to be met, cover the plexiglass cover and fix the belt box cover. 7. After ensuring the seal, connect the power supply and slowly adjust the frequency of the inverter through the knob on the governor panel, so that the governor frequency is adjusted to the value specified in the table below according to the diameter of the roller (depending on the external factors such as the power supply situation, etc. The values ​​in this table are only reference values, please use the speedometer to fine-tune according to the actual situation, so that it fully meets the standard requirements). The dust is blown with compressed air as required by the standard. ※ According to the standard requirements of MT821-2006 "Technical Conditions for Belt Conveyor Rollers for Coal Mines", the speed is 1450r/min, and the reference frequency is as follows: ※ According to the standard requirements of GB/T10595-2009 "Belt Conveyor", the speed is 600r/min, and the reference frequency is as follows: The following are two operational differences between the device options: 1 With time control function, set the test time; when the knob is twisted to run, the roller starts to run, the test starts; when the test time arrives, the instrument automatically stops working. At this time, the switch can be manually turned to stop, which is convenient for the next test. Press the “clear†button to clear the test time and restart the test. 2 Without time control function, control the rotation and stop of the motor through “run†and “stop†on the governor panel. 8. After the whole test process is completed, take out the test roller and calculate the content of coal dust into the bearing grease according to the standard requirements. 9. Clean the test bench. Precautions 1. When the governor frequency is less than 20HZ or higher than 65HZ, it is strictly forbidden to run the motor for a long time. 2. During the operation, the belt should have a certain tension to prevent the belt from slipping and affect the roller speed. 3. After starting, the clamp current meter can be used to measure whether the current exceeds the rated current value of the motor. If it exceeds the rated value, it must stop running, otherwise the motor may be damaged. 4. Pay attention to personal safety when installing the roller. 5. When replacing the pulley, be sure to install the pulley firmly to prevent accidents when the motor rotates. 6, due to the variety of rollers, such as the distribution belt and the test roller does not match the situation, please customers to buy the matching length of the belt!
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Roller dustproof performance test bench operating instructions