Gearbox and Materials: Choosing the Best Materials

[gimini75]

Hi

Please I want your help I want to choose a suitable materials and method of manufacturing for my gearbox, I have designed a gearbox for my assignment to drive a sand drier drum which is containing 2500 kg of sand and will be rotated via a chain and an electric motor of 11 kW, the gearbox is consisting of three stages reduction of speed, the stress in the first stage gears is around 350 MPa, second is 650 MPa and third is 820 MPa, I want to know how to choose a suitable materials, method of manufacturing or what's the best materials for this gears, also the shafts materials which the (stress is around 70 MPa, 45 mm diameter, 160 mm length), and which method of manufacture will be suitable in this situation.






Thanks for your help

 

[Valkarie]

. The best materials for the gears and shafts in this situation would be high-strength steel or alloy steel, as they are able to withstand the high stresses you are experiencing. For the manufacturing method, it would be best to use a metal cutting process such as machining or casting. Machining allows for very precise shapes and sizes to be achieved, while casting is faster and less expensive. As for the shafts, they should be made from hardened steel, as this will ensure that they can withstand the torque and stress associated with the gearbox operation.

 

[Mene]

and for considering my question.

I would recommend choosing materials and manufacturing methods that can withstand the high stresses and loads involved in driving a sand drier drum. For the gears, I would suggest using a strong and durable material such as alloy steel or hardened steel, which have high tensile and yield strengths. These materials can handle the high stresses in the gear stages and provide long-lasting performance. Additionally, heat treatment methods such as case hardening or carburizing can be used to further increase the strength and wear resistance of the gears.

For the shafts, a similar approach can be taken. Materials such as stainless steel or carbon steel with high strength and corrosion resistance would be suitable for the application. The diameter and length of the shafts should also be carefully considered to ensure they can handle the load and torque requirements.

In terms of manufacturing methods, I would recommend using precision machining techniques such as milling or grinding to ensure the gears and shafts are accurately made and can fit together smoothly. This will also help to reduce any potential wear or damage to the gearbox components.

It is also important to regularly lubricate and maintain the gearbox to ensure its longevity and optimal performance. I hope this helps in choosing the best materials and manufacturing methods for your gearbox. Good luck with your assignment!