JS concrete mixer debugging points

A concrete mixer is a shaft with a blade rotating in a cylinder or a tank, mixing and stirring various raw materials to make it a mixture or a machine suitable for consistency. There are many kinds of mixers, including forced mixers, single-shaft mixers, twin-shaft mixers, and so on. In the commissioning of the mixer, what should be noted, we made the following summary of the JS series mixers that were built for strong construction machinery:
1. to check the gearbox and lubrication parts are adequate and good.
2. Check the power supply voltage: The rated voltage is 380 volts and the error is 10%.
3.check the wiring of the motor and electrical components is secure, the distribution box enclosure must be reliably grounded. The zero line of the power supply must be delivered to the terminal block N in the distribution box. All lines should be properly placed to prevent accidents caused by crushing during operation.
4. start the stirring motor, two half shaft rotation direction should be consistent with the direction indicated by the sign, such as the wrong direction, should change the power wiring.
5. start the rolling field motor to enhance the hopper, hopper lift to the discharge position, it should automatically stop, the bucket door automatically open. When the hopper is in motion, if the motor is de-energized, the brake motor will brake the hopper. If the hopper falls more than 50mm, the braking torque is too small, and the large nut of the brake motor should be adjusted to increase the braking torque.When the hopper descends, it jams in the horizontal ramp and descends to the bottom of the pit. The rope is slightly loose, and the lowering stroke switch acts, and the spooling mechanism stops automatically.
6. start the discharge mechanism, opening and closing the discharge door should be accurately in place. Start the pump to pump water and the water supply system should operate normally.
7. Determine the water supply according to the required mix ratio and adjust the time relay to the corresponding water supply time. Start the stirring motor operation.
8. Close the discharge door, add the required mixture to the hopper, and lift the hopper to run smoothly and freely at any position on the track. If there is a slip phenomenon, it should be put into the pit first, and then adjust the big nut on the brake motor.
After the hopper is raised normally and the brake is reliable, the material is fed into the mixing drum and the water pump is started to supply water to the mixing drum.
9. After 25-35 seconds of stirring, start the discharge gate to discharge.
10. In the above-mentioned test operations, if abnormal conditions are found, the machine should be shut down immediately for inspection, troubleshooting, and then test again until it becomes normal. After the new machine is in operation, the bolts on the lining plate and other places shall be handled, and all the nuts shall be checked and tightened. Lubrication part of the transmission lubrication.

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