applications for gearboxes

[meccanicamg]

if the reduction ratio does not meet, just put an inverter and an adequate engine. In this way you get exactly what you want at a modest and less complicated cost of applying a further reduction stage especially if you are not able in the industry.

 

[carlo23]

thanks thanks

 

[TETRASTORE]

I wanted to ask you a consideration because now I have a doubt too. if the only bond is that relating to the transmission ratio: when is it better to do an external reduction rather than contact another supplier and take the appropriate gearbox? . in the sense, in the end if I buy the gear motor I just have to perform a correct installation while if I want to achieve an external reduction I have to make a project, which is much longer and laborious.
Obviously I understand that if there are spaceways an external reduction (with a belt transmission for example) may be necessary but in the case of the only limit on the transmission ratio it is not clear to me.

you start from the project of a machine or plant and you evaluate whether the speed must be fixed or variable: For example, in the case of a small conveyor belt for the case of a supermarket or for the transport of eggs in an avicle plant, in both with fixed speed, you try not to apply reductions simplifying as much as possible the assembly and, consequently, reducing the costs.

It is then a matter of seeing if the direct application of the reducer does not create problems at the level of the encumbrance trying to place it in an optimal position. If the direct application is possible, you will look for a reducer who has the performance and a reduction ratio that meets the needs of that application. in the two cases mentioned there are no big problems in the choice of the reduction ratio because in most cases, in the catalogs of the manufacturers of gearboxes, there are standard solutions that have number of turns with acceptable shocks regarding the desired. if the application requirements required a fixed speed with a fairly precise number of turns, it would be necessary to foresee an external reduction or the adoption of a speed control system on the motor (e.g. motor with integrated inverter) evaluating whether the greater cost of one solution than the other is permissible compared to other benefits.

If we analyze a complex system like that of the attached image, we will have to evaluate the process requirements, such as the format change, which will require different speeds depending on the product to be treated, particularity that will affect differently the characteristics of each individual machine being part of the system, for which we will have both fixed speed drives (with or without external reduction) that variable but all will have to act in synchronia with the use of proper devices that allow supply
In this case the choice of an external reduction can be determined by the needs of the encumbrance or by the need to use smaller gearboxes.
Obviously in the great industrial application universe, the needs and solutions are so many that the designer will surely have his own to do to reconcile solutions, performance and costs to satisfy the client.

I suggest you visit some industry fairs to see the various application solutions adopted, trying to understand the reason for a choice compared to another. It's a very useful exercise.

 

[@ndreaR]

you start from the project of a machine or plant and you evaluate whether the speed must be fixed or variable: For example, in the case of a small conveyor belt for the case of a supermarket or for the transport of eggs in an avicle plant, in both with fixed speed, you try not to apply reductions simplifying as much as possible the assembly and, consequently, reducing the costs.

It is then a matter of seeing if the direct application of the reducer does not create problems at the level of the encumbrance trying to place it in an optimal position. If the direct application is possible, you will look for a reducer who has the performance and a reduction ratio that meets the needs of that application. in the two cases mentioned there are no big problems in the choice of the reduction ratio because in most cases, in the catalogs of the manufacturers of gearboxes, there are standard solutions that have number of turns with acceptable shocks regarding the desired. if the application requirements required a fixed speed with a fairly precise number of turns, it would be necessary to foresee an external reduction or the adoption of a speed control system on the motor (e.g. motor with integrated inverter) evaluating whether the greater cost of one solution than the other is permissible compared to other benefits.

If we analyze a complex system like that of the attached image, we will have to evaluate the process requirements, such as the format change, which will require different speeds depending on the product to be treated, particularity that will affect differently the characteristics of each individual machine being part of the system, for which we will have both fixed speed drives (with or without external reduction) that variable but all will have to act in synchronia with the use of proper devices that allow supply
In this case the choice of an external reduction can be determined by the needs of the encumbrance or by the need to use smaller gearboxes.
Obviously in the great industrial application universe, the needs and solutions are so many that the designer will surely have his own to do to reconcile solutions, performance and costs to satisfy the client.

I suggest you visit some industry fairs to see the various application solutions adopted, trying to understand the reason for a choice compared to another. It's a very useful exercise.

Thank you so much, now it's all much clearer!
I give you absolutely reason for the visits/businesses; I have recently been to the bologna sae (although in that case the sector was that of civil engineering) and I was evaluating the bie di brescia for this year. By the way, I was able to visit a couple of companies from my side and exchange two chats with the owners. I must say that as a student they are very valuable experiences that also push you to reflect on more transversal aspects than the classic formulas and tables of the university.

 

[carlo23]

thanks tetrator