In daily operation, the forced concrete mixer will inevitably fail, and a collision sound is found during mixing. It may be caused by the loosening or warping of the mixing blade or scraper caused by the collision with the mixing drum. It is possible to use a fast mixing blade Or solve the connection bolt of the scraper, overhaul, adjust the gap between the mixing shovel, scraper and the cylinder wall. The following are the diagnosis and solutions of various forced concrete mixer failures.
1. There is a collision sound during forced concrete mixing
the reason:
Loose or warped mixing spatula or scraper may cause collision with mixing drum.
Solution:
Tighten the connecting bolts of the mixing spatula or scraper, repair and adjust the gap between the mixing spatula, scraper and cylinder wall.
Second, the mixing shovel does not work well and the sound is abnormal
the reason:
1. The buffer spring of the stirring device is invalid.
2. There are large particles in the mixture that are stuck to the shovel.
3. Too much feed and overloaded power.
Solution:
1. Replace the spring.
2. Remove the materials from Kasai.
3. Feed according to the specified feed capacity.
3. Slurry leakage at the discharge door during operation
the reason:
1. The discharge door is not tightly closed.
2. The remaining adhesive around the discharge door is too thick.
Discharge method:
1. Adjust the bolts under the discharge floor to make the discharge door tightly closed.
2. Remove the remaining adhesive materials.
4. The hopper is not running smoothly
the reason:
The feeding rail is warped unevenly, and the hopper rollers have poor contact.
Discharge method:
Check and adjust the two rails so that the rails are straight and the rail surfaces are parallel.
5. When the upper hopper rises, it crosses the top point and pulls the traction mechanism.
the reason:
1. The automatic limit failure.
2. The automatic limit baffle is deformed and does not work.
Solution:
1. Repair or replace the limit device.
2. Adjust the limit stop.
Users who have used the forced mixer may understand it and know that the original arc part of the mixer drum of the forced mixer is welded. There are eight kinds of lining plates in the mixer cylinder, and the military countersunk head screws are tightly connected to the cylinder body. solid. The mixing drum of the forced mixer has two horizontally arranged stirring shafts, each of which is equipped with a stirring blade. Side blades are respectively installed on the mixing arms near the two ends of the mixing drum, which can scrape off the concrete on the end surface.
Six, the reason and solution of the shaft leakage of the forced mixer
1. The slurry leakage at the shaft end of the concrete mixer is caused by damage to the floating seal of the mixer during long hours of work.
2. The shaft end of the concrete mixer is where the stress is concentrated. In the work of the concrete mixer, the shaft end is subjected to the most stress, so the wear of the parts is correspondingly greater.
3. Maintain the shaft end parts of the concrete mixer in time and replace the seals in time. Can prolong the service life of concrete mixer. If the shaft end of the concrete mixer leaks, the new floating seal must be replaced in time.
