linear/rebalt cinematography

[deep70]

Hello everyone,
I would like to ask you the following question, I have the need to rotate the vertical frame (a) through an actuator, and so far everything ok, but I would like to make sure that the actuator (c) remained parallel to the horizontal frame (b) and therefore firm that it did not follow the angular motion, I am not very experienced in cinematism, if someone kindly manages to give me some indication I would be very grateful.
thanks in advance to all.

 

[Mario SJPD]

according to me as you drew it doesn't work.
if from figure 2 actions the cinematism gains predominantly an hourly and non-clockwise rotation like that required. then you have to change the angle of attachment between cylinder and zipper.
done this you can lock the cylinder and soothe the flange but surely it is a more complicated and difficult solution and it is better to do it only if you have no alternative

 

[deep70]

thanks to the answer, basically the movement that has to do is that, i.e. return the frame sloping in the direction of the hourly, stem in the output vertical frame. I just want to avoid the movement that makes the actuator perhaps with additions of some lever or other ...

 

[Mario SJPD]

vertical frame output stem

That's not what I'm thinking, you're still pushing it out.
Tell me if I missed something.

 

[deep70]

That's not what I'm thinking, you're still pushing it out.
Tell me if I missed something.

Why not? You can also see the help.. basically the operation is contrary if we want to say...

 

[Mario SJPD]

ops are right

 

[TETRASTORE]

According to me the asola associated with a pin with roller is a simple solution. However, you need to check if the actuator's stem can support the radial load upwards, if you can see if you can provide adequate support.

 

[deep70]

ok solved, the afternoon rest say that it served me both to reflect and to rest..

 

[deep70]

According to me the asola associated with a pin with roller is a simple solution. However, you need to check if the actuator's stem can support the radial load upwards, if you can see if you can provide adequate support.

hi tetrastore, I had already tried as you say, I was convinced too, but practically the pin runs inside the solo vanifying everything. .

 

[deep70]

better with the inverted lever and with a slightly more moved attack, to make the idea however should suffice the draft below. :

View attachment 64807
View attachment 64808

 

[bip]

mount a rack on the linear actuator (obviously guided by lards) and a pinion on the fulcrum of the piece a.

 

[deep70]

mount a rack on the linear actuator (obviously guided by lards) and a pinion on the fulcrum of the piece a.

seems even better as you say bip, also because of the possible load during the descent.. would you kindly have an example draft to show me?

 

[bip]

Here we go.

 

[deep70]

Here we go.

Thanks a lot of beeps, you were very kind and helpful. Good day to you.

 

[teseo]

So? ? ?
you can post the final solution thanks......
Hi.

 

[teseo]

try this too if you like hi

 

[deep70]

Sorry you're right, then after evaluation we decided to proceed with the actuator in a classic position as you see from the image, two side arms are missing that I'm about to prepare and then it's okay we proceed with the rest. (really great your idea, thank you very much for the interest).

 

[teseo]

Sorry you're right, then after evaluation we decided to proceed with the actuator in a classic position as you see from the image, two side arms are missing that I'm about to prepare and then it's okay we proceed with the rest. (really great your idea, thank you very much for the interest).View attachment 64841
View attachment 64842

Unfortunately it is not my idea found in my various web spins.......however thanks

 

[deep70]

Unfortunately it is not my idea found in my various web spins.......however thanks

Well, anyway you've got the subject, then you know that cinematics is varied.. It is a real universe to discover. . It is enough to have the time that you do not always have unfortunately.

 

[Marco F inox]

Hello everyone,
I would like to ask you the following question, I have the need to rotate the vertical frame (a) through an actuator, and so far everything ok, but I would like to make sure that the actuator (c) remained parallel to the horizontal frame (b) and therefore firm that it did not follow the angular motion, I am not very experienced in cinematism, if someone kindly manages to give me some indication I would be very grateful.
thanks in advance to all.
View attachment 64801

if the solution adopted entails an excessive encumbrance, I would return to this first drawing, in which however the position of the hole on the bracket is incorrect. between the maximum opening and closing position, this hole must swing both right and left, despite the vertical push for the rotation center. as the total rotation is modest, about 50°, the oscillation of the actuator is minimal, just perceptible. the hole, fulcrum of the stem, should be moved to the right and possibly the actuator follows it.