The hammer head of our factory's crusher breaks frequently
Thread Content
In the picture above, the model of our factory's pulverizer is WFJ-630, which is a two-stage crusher. The fault phenomenon is that 4 sets of teeth (hammer heads), that is, the teeth on the first-level grinding disc, have been broken for 30 consecutive days. After cleaning, there are no foreign objects, and the teeth are not affected by external forces. Have you ever encountered this situation? The manufacturer has also communicated with us and there is no problem in the feedback. The material is said to be Mn13Cr2. It is cast, threaded first, and then square milled (the end has an inclination angle). The weight is basically the same when weighed. I have cut a tooth here and plan to send it out to inspect the elements and analyze whether the material is correct. Is there any pulverizer manufacturer in Jiangsu Province that you can recommend with good technology? Thank you!
It’s a relatively serious advertisement.
Your crusher has a broken cutterhead structure. Generally, the cutterhead is round and has a circle of cutterheads around it for pelletizing and crushing materials. Your case is a hard collision, and I think your breakage must have been caused by a foreign object.
Why do you say others are advertising posters? Are you advertising that your equipment is prone to breakage?
Did the original poster install a new device or is it an old device that was fine before but suddenly has problems recently? The contact with equipment of this structure is not too deep. If the old equipment has problems recently, it is recommended to start the investigation from the equipment body. The spare parts supplied by the manufacturer should not always have the problem of unqualified raw materials, and occasionally there may be. Is it possible that it is not running smoothly? Is it possible that the hardness of the crushed materials has changed?
Material problem, too much hardness and not enough toughness.
Everyone upstairs has mentioned possible problems with materials. I think in addition to the material aspect, the author can take a closer look to see if there is any stress concentration problem at the chamfering position. Furthermore, what was said on the fifth floor should also be considered, and a rehearsal analysis should be conducted from the time of occurrence of the problem, whether the manufacturer of spare parts has changed, and the batch of spare parts, etc.
Change it, put the hammer handle in the middle. Secondly, the hammer handle should not be too long
Change it, put the hammer handle in the middle. Secondly, the hammer handle should not be too long