Who bears the weight of the stirrer in the reaction tank
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Who bears the weight of the stirrer in the reaction vessel? There are no thrust bearings; it’s the case like this below
The equipment itself rests on the foundation via ear seats; it is the foundation that bears the weight. However, it is necessary to consider the impact of the dynamic loads generated by mixing on the equipment itself.
This post was last edited by α**ethylene on 2017-7-17 at 16:49. If there are any objections, let’s discuss them; to avoid misleading people, I’ll delete the content and update it once a decision is made.
The two supports on your drawing do not serve to bear weight; they are only used for positioning, to prevent the mixing shaft from shaking.
The first is for pure positioning, while the second provides some support.
Unless the second one has thrust bearings, it is the reducer frame that actually bears the load; then the weight falls on the tank, and finally the legs bear the weight.
I just checked, and the person in charge of the layer is correct: although both the intermediate bearings and the bottom bearings have some capacity to bear weight, it is indeed as the person in charge said that they bear the actual load. Additionally, since the intermediate supports and the leg supports are located inside the mixer, once they start bearing weight, they deteriorate much more rapidly than those supports that serve only a positioning function.
Inside the bearing chamber located in the middle of the reducer bracket, there is a pair of angular contact bearings, and it is these bearings that bear the load
The motor and the reducer, as these two support points, can withstand a certain amount of axial load; if it is determined that they are not capable of bearing the load on the mixing shaft, then a frame with two support points must be used to handle the axial forces. You said there are no thrust bearings, so it is the motor and gearbox that bear the load of the mixing shaft.
It can be said that both the mixer’s mounting base and the equipment itself bear the weight. The mounting base is the main component subject to stress, so its load-bearing capacity needs to be taken into account; as for the main body of the equipment, only its rigidity needs to be considered. Moreover, the rotation speed is usually very low, and the equipment’s main body is not a thin-walled structure, so no additional strength considerations are necessary for it. This is just a personal opinion for reference.
I really haven’t thought about this issue carefully; learning truly knows no bounds! Thank you, OP