Lifting mechanism 1a
Вставка
- Опубліковано 22 сер 2024
- A nut portion is created on the lower rack and receives motion from a motor via the grey screw.
If the motor rotates regularly, the top desk moves up irregularly like the slider of a slider-crank mechanism.
Link for downloading STEP files of this video:
www.mediafire.c...
기계원리가 대단하십니다
Awesome! thanks for sharing! Keep up the amazing work!
This is awesome. Thanks for sharing.where can i get the step file of this?
Link to download STEP files of this video is in the video description already.
@@thang010146 Oh i see it. Thank you sir.
Thanks a lot for sharing! I was wondering why a motion like this never goes to full extension. Is this to prevent the arms from moving inward? And if so, could another solution be to add some material at outside of the hinges to prevent them from collapsing inward, like doors that only can rotate one direction? I hope my question is clear. It would be awesome if someone could help me!
Use a stopper to eliminate the rack motion to prevent the arms from moving inward.
No collapse if the arms move inward for this mechanism because the worm-rack drive has self-locking feature (motion can not be transmitted from the rack to the worm)
@@thang010146 Thank you! I see it now :)
amazing
What if the bottom members were shorter, would it produce efficiency like leverage?
Then the lifting displacement is shorter.
@@thang010146 The efficiency could still be higher if created with a lever, due to the relative distances. Remember, altitude is at a premium.
This is easier to understand. How it differs(mechanical advantage or accuracy ,control) from usual scissors lift mechanism which serves the same purposes.
I am sorry that I don't have the information you need. To answer your questions it is necessary to make some calculations or analyses.
thang010146 no problem sir
cháu dự định áp dụng cơ cấu này thay cho scissor khi đổ bê tông vòm hầm
trong hầm chật chội không có xe cẩu hỗ trợ, ta xếp ván khuôn dưới thấp sau đó nâng lên đúng cao độ
Khi đổ bê tông, cơ cấu scissor không chịu lực tốt vì các thanh không thể duỗi thẳng đứng như cơ cấu này
A complicated scissor jack.
Another question my interest. the mechanism always rises at the same rate?
Again grateful.
Mauricio Agustín Napolitano
Normal
0
false
false
false
MicrosoftInternetExplorer4
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";
mso-ansi-language:#0400;
mso-fareast-language:#0400;
mso-bidi-language:#0400;}
If the
motor rotates regularly, the top desk moves up irregularly like the slider of a
slider-crank mechanism.
Mauricio Agustín Napolitano If the motor rotates regularly, the top desk moves up irregularly like the slider of a slider-crank mechanism.
thang010146 I'm looking for a mechanism that can be compressed as the scissor lift, but upload speed is always the same and in a straight line. Any ideas?
Mauricio Agustín Napolitano
Normal
0
false
false
false
MicrosoftInternetExplorer4
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";
mso-ansi-language:#0400;
mso-fareast-language:#0400;
mso-bidi-language:#0400;}
The
followings may meet your requirements:
ua-cam.com/video/Zm-4kJLdRcM/v-deo.html
ua-cam.com/video/UniRkbt0LOY/v-deo.html
ua-cam.com/video/cML0xKSmTPM/v-deo.html
Hola. Muchas gracias por compartir éste trabajo. Excelente. Me pregunto si me compartirías el archivo Stl para poder imprimir con mi 3Dprinted. Muchas gracias.
Mauricio Agustín Napolitano
Link for downloading STEP files of this video:
@2
Mauricio Agustín Napolitano Link for downloading STEP files of this video:www.mediafire.com/download/2jf...
Mauricio Agustín Napolitano
Link for downloading STEP files of this video:www.mediafire.com/download/2jf...
Good..
What is the use of upper green rack
The racks ensure that opposite yellow bars turn in opposite directions with the same velocity. Without them the upper plate can't be kept horizontal.
Disculpen, cuál es el programa que utilizan para crear estás simulaciones mecánicas?
All videos in this channel are made in Autodesk Inventor, Dynamic Simulation.
Is the green part necessary?
The racks ensure that opposite yellow bars turn in opposite directions with the same velocity. Without them the upper plate can't be kept horizontal.
Hi, There are some wrong at worms part. We wanna use this mechanism in our project but we have some problem about mate relation worms part and rack B. If i ask Can you help me
Vahit köse
OK. Let me know your problem via email. Sketches are appreciated if needed.
My email:
thang010146@gmail.com
ANY FREND GUIDE ME FOR MACKING OF MECHANICAL SCISSOR LIFT MACKING
Im looking for a mechanism that lifts and rotates a cylinder could you please help me?
Could you show your request more in details using sketches?
My email:
thang010146@gmail.com
Please, what software do you use ?
All videos in this channel are made in Autodesk Inventor, Dynamic Simulation.
Could have been greatly simplified by eliminating that purple triple-rack device, changing the two yellow gears to work with a worm screw, and then using a full-length worm screw shaft at an angle, such that the top of the left gear and the bottom of the right gear engage the worm screw shaft. You would just need more clearance underneath the right gear to accommodate the worm screw shaft. Eliminating that purple triple-rack would also eliminate a good bit of maintenance; it looks like a serious weak point in the maintenance lifecycle.
Thank you for your good idea: using long shaft of two opposite hand worms. The latter directly engage with the two lower yellow gears. No need of the pink rack.
Very inefficient. Would break very easily
can you send me how to sketches thats please ...I wanna make thas projet
Link for downloading STEP files of this video:
www.mediafire.com/download/2jf...
Thank you
Name of this logiciel..?
hello what app can be used to view the step files?