Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. marcuscouceiro

    Thread Analysis on SolidWorks

    The calculations were missing. Here they are. Kind regards,http://files.engineering.com/getfile.aspx?folder=151b7b13-7420-4591-83d6-a5f05cecf88f&file=Mathcad_-_Screw_and_Nut.pdf
  2. marcuscouceiro

    Thread Analysis on SolidWorks

    Dear Gentlemen, A friend of mine asked to perform a few calculations in order to find out if the threads of a Nut and Screw could sustain the amount of traction force applied. So, I performed the calculation to find out the area of the threads in contact and, using a factor of 2, I have found...
  3. marcuscouceiro

    Press fitted axis

    Dear Gentlemen, I would like to thank you all for the valuable information provided during this Thread. I think that right now we have information enough to finish the tool and we will move on that direction. I hope I can count on you next time. Regards, marcuscouceiro
  4. marcuscouceiro

    Press fitted axis

    Hi desertfox, The tool will be man powered. Now that you mentioned, it seems that there is no reason to use one section with ACME threads and another one with UNC thread since the worst case scenario is based on the UNC thread. Is that what you mentioned? I have posted a drawing of the tool as...
  5. marcuscouceiro

    Press fitted axis

    Hi Mike, Although it will be used frequently it will be men powered. The main problem is the material that we have to use. I am not sure if a screw made of ANSI4140 is easy to find (I am located in Brazil). Besides that, due to the arrangement, one end of the power screw has to change to 3/4...
  6. marcuscouceiro

    Press fitted axis

    Dear Gentlemen, I was finally able to finish the project of the power screw and nut for the assembly of the shaft. Could you have a look and give me you comments? This is my first design here at the company and I do not want to machine the tool before someone with more experience tells me...
  7. marcuscouceiro

    Press fitted axis

    Hi desertfox, You are correct. I did not notice the information that you posted before. The table further below gives a value of 0.8 (Mild) Steel (Mild) 0,74 0,57 but these are related to flat surfaces. Thank you once again for your patience and sorry for my mistake. Hey hydtools, Thanks...
  8. marcuscouceiro

    Press fitted axis

    Dear Gentlemen, Thank you all for sharing your experiences. Here are my comments: Mr. CoriPad and KingNero, I will use 0.25 in my calculations instead of 0.8. This will give me a lower axial stress and it´s within your experience. Mr. desertfox, I had seen those tables before but they gave...
  9. marcuscouceiro

    Press fitted axis

    Hi CoryPad, Thank you so much for your quick answer. Can we consider our depot facilities a ´traditional environment´? It´s a large area where we do maintenance in trains. Is this value (0.2 +/- 0.1) based on your experience or based on a book? I will probably use your values but just as a...
  10. marcuscouceiro

    Press fitted axis

    Dear All, Here at company we have to install an axle onto two (3) bearings. After using Lame´s equation I was able to find the pressure generated due to the interference between the outer diameter of the axle(wich is solid) and the inner diameter of the bearings. My question is regarding the...
  11. marcuscouceiro

    Design of Power Screw

    Hi Mr. Mike, Thank you for your answer. I have just uploaded a drawing to give you an idea. What you said is correct. The inner ring of the bearing is really reacting to the pulling force but this is the correct way, according to the service manual. Regarding the equations, is there any...
  12. marcuscouceiro

    Design of Power Screw

    Hello Gentlemen, I was designated to create a tool for our maintenance depot and since I am new in the company I would like to show a good work by providing all necessary calculations and so on. Basically we have a pinion with 65 mm OD (+0,024,+0,011 tolerances)that fits by interference in the...
  13. marcuscouceiro

    Assembling camshafts in SolidWorks

    Dear Gentlemen, Thank you so much for your explanation. I was finally able to create the angle between the cams. Kind regards to all, Marcus
  14. marcuscouceiro

    Assembling camshafts in SolidWorks

    Hi MadMango, Thank you for your answer. As far as I coud see I do not have any automatic relations preventing the movement of the cams. My main problem is that when I select ´Mate´ I do not know which features I have to select on Cam 1 and Cam 2 in order to make available the angle ´Mate´...
  15. marcuscouceiro

    Assembling camshafts in SolidWorks

    Gentlemen, I am trying to assembly one camshaft using SolidWorks and everything was going fine until now. The problem is that I need to add an angle between the cams and I am not beeing able to do it. Right now they are both aligned. I can rotate one of them manually but this is not a good...

Part and Inventory Search

Back
Top