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- Просмотров 274 290 332
thang010146
Вьетнам
Добавлен 6 окт 2010
List of 3200 videos in channel thang010146 (uploaded till 31 Mar. 2020) including pictures, brief descriptions and RUclips links can be downloaded at:
www.mediafire.com/file/muio0i3hyvnhtj6/3200AMMe.zip/fi
The list consists of 4 parts:
Part 1: Transmission of continuous rotation
Part 2: Other kinds of motion transmission
Part 3: Mechanisms of specific purposes
Part 4: Mechanisms for various industries
Autodesk Inventor is used to create all videos in this channel.
Author Information:
Name: Nguyen Duc Thang
Birth year: 1946 in Hue City, Vietnam
Mechanical engineer, 1969, Hanoi University of Technology
Doctor of Engineering, 1984, Kosice University of Technology, Slovakia
Job history:
- Designer of small mechanical engineering enterprises in Hanoi.
- Retirement in 2002.
Contact Email: thang010146@gmail.com
www.mediafire.com/file/muio0i3hyvnhtj6/3200AMMe.zip/fi
The list consists of 4 parts:
Part 1: Transmission of continuous rotation
Part 2: Other kinds of motion transmission
Part 3: Mechanisms of specific purposes
Part 4: Mechanisms for various industries
Autodesk Inventor is used to create all videos in this channel.
Author Information:
Name: Nguyen Duc Thang
Birth year: 1946 in Hue City, Vietnam
Mechanical engineer, 1969, Hanoi University of Technology
Doctor of Engineering, 1984, Kosice University of Technology, Slovakia
Job history:
- Designer of small mechanical engineering enterprises in Hanoi.
- Retirement in 2002.
Contact Email: thang010146@gmail.com
Self-centering fixture 1d
A wedge mechanism (pink, yellow and jade) controls the positions of two V-shaped jaws (blue and yellow) to center and clamp the white pipe.
The orange screw (which has a rotary joint with the pink wedge and a screw joint with the base) moves the pink wedge when rotated.
Four red springs always press the yellow and jade parts to the pink wedge.
The fixture is intended for small clamping forces and low rotation speeds of the workpiece.
The orange screw (which has a rotary joint with the pink wedge and a screw joint with the base) moves the pink wedge when rotated.
Four red springs always press the yellow and jade parts to the pink wedge.
The fixture is intended for small clamping forces and low rotation speeds of the workpiece.
Просмотров: 1 203
Видео
Manual paper cutter 1
Просмотров 3,1 тыс.9 часов назад
Turn the orange handle wheel to clamp the paper bundle. Turn the blue lever to cut it. The yellow blade is fixed on the green slider that moves obliquely downward thanks to the gear rack drive. The slider moves on two pink rollers. The paper bundle adjustment device is not shown. See a real machine: ruclips.net/video/U5WsN0N8Q_Q/видео.html
Eliminating backlash in bevel gear drives
Просмотров 3 тыс.9 часов назад
The black spring forces the blue bevel gear towards the blue bevel gear to take up backlash. Here, not only the tooth backlash but also the axial backlash of the two gear shafts are eliminated.
Tobacco cutter from 1950
Просмотров 3,9 тыс.День назад
Three yellow blades are mounted on a disk that is rotated by hand. The material to be cut (tobacco, vegetable) will be automatically fed into the cutting area by the blue toothed roller. It receives rotation from the disk through the drive of pink worm and orange face gear. The weight of the yellow roller creates friction between the material and the feed roller. The last scene of the video sho...
Rotation transmission for a C-shaped disk 2
Просмотров 8 тыс.14 дней назад
Input: pink shaft having pinion and sprocket. The red shaft (having pinion and sprocket) receives rotation from the pink shaft through the chain indicated by the blue line. The yellow C-shaped gear ring is centered on green rollers. It meshes with the two pinions. The axial distance between the pink shaft and the red shaft is large enough to ensure that at any given time there is at least one p...
Eliminating backlash in revolution joint
Просмотров 4,8 тыс.14 дней назад
This mechanism aims to eliminate backlash at the revolution joint between blue link and its pivot. Toggle links (yellow and red) are spring loaded and approach alignment to take up lost motion as wear in the joint takes place. Smooth response is thus gained. The video shows how the links move under the influence of the spring to eliminate the backlash at all four revolution joints here. This vi...
Eliminating backlash in screw-nut drives 2
Просмотров 4,3 тыс.14 дней назад
Movable yellow block is forced away from fixed gray block by green spring-loaded wedge. Pressure is applied to both sides of the pink lead screw, thus ensuring snug fit. Contact occurs between the right side of the screw and the gray block and between the left side of the screw and the yellow block. This video was made based on picture 1, page 1-50 of the book: Illustrated Sourcebook of Mechani...
Eliminating backlash in screw-nut drives 1
Просмотров 4,5 тыс.14 дней назад
Yellow collar and gray block have continuous V-thread. When wear takes place in the pink lead screw, the collar always maintains pressure on threads thanks to the black circular spring that applies torque to the collar. Contact occurs between the left side of the screw and the gray block and between the right side of the screw and the yellow block. The video shows how the yellow collar and pink...
Rotation transmission for a C-shaped disk 1
Просмотров 6 тыс.21 день назад
Input: large blue pulley receiving the rotation from the brown motor. The yellow C-shaped disk is centered on pink and orange pulleys. The disk is rotated thanks to the black toothed belt drive of the blue and pink pulleys. This mechanism is used in cable wrapping machines (last scene of the video). The cable is brought into or removed from the machine through the slots of the disk and the mach...
Eliminating backlash in gear drives 3
Просмотров 6 тыс.28 дней назад
Input: yellow gear. The blue gear is idly pivoted on the red gear shaft. The pink spring loaded wedge pushes the two pins of the red and blue gears apart thereby eliminating tooth backlash between the three gears. Wedge action keeps the zero tooth backlash very stable. This video was made based on picture 3, page 1-48 of the book: Illustrated Sourcebook of Mechanical Components archive.org/deta...
180 deg. precise rotation
Просмотров 7 тыс.28 дней назад
The orange rim can be rotated precisely 180 degrees forward and backward by hand thanks to the black spring and green stoppers. It rotates on three pink ball bearings so the frictional torque is very small. The black spring helps the rim reach the two end positions through a snapping motion. The red arrow represents the human force exerted on the rim.
Spatial linkage for angular transmission (90 degrees)
Просмотров 3,5 тыс.Месяц назад
The green part has cylindrical joints with the pink input crank-shaft and yellow output crank-shaft. The crank radii of the input crank-shaft and the ouput crank-shaft are equal. It is a constant velocity drive. Transmission ratio is 1. The mechanism is in unstable position when the output crank-shaft radius is perpendicular to the input crank-shaft's rotation axis. If the output crankshaft sta...
Spatial linkage to convert rotation to angular oscillation
Просмотров 2,4 тыс.Месяц назад
The green part has cylindrical joints with the pink input crank-shaft and yellow output crank-shaft. The crank radius of the input crank-shaft must be smaller than the one of the ouput crank-shaft. The output oscillation angle can not exceed 180 degrees. See a real mechanism: ruclips.net/video/colHBFGye-E/видео.html
Eliminating axial backlash in revolution joint 2
Просмотров 5 тыс.Месяц назад
Centrifugal force causes red balls to exert force on yellow grooved washer-plates when shaft rotates, pulling it against bearing face of the blue bearing and the grey nut. The video shows how the balls move under the influence of centrifugal force to push the plates apart and how the movement of the yellow plates helps to eliminate the shaft’s axial backlash. This video was made based on pictur...
Eliminating axial backlash in revolution joint 1
Просмотров 4,1 тыс.Месяц назад
Three integral rings on the green shaft slide in grooves of the blue base and yellow cap to prevent axial movement of the shaft. The grooves in the yellow cap are offset axially. The video shows how the spring forces cause the shaft movement to eliminate its axial backlash. The blue base prevents the shaft from moving to the left. The yellow cap prevents the shaft from moving to the right. This...
Gearbox for two output coaxial shafts
Просмотров 5 тыс.Месяц назад
Gearbox for two output coaxial shafts
Controlling rotation and translation of an object 6
Просмотров 6 тыс.2 месяца назад
Controlling rotation and translation of an object 6
Controlling the direction of a rectangular moving object
Просмотров 3,5 тыс.2 месяца назад
Controlling the direction of a rectangular moving object
Mechanism for changing UAV wing position
Просмотров 8 тыс.3 месяца назад
Mechanism for changing UAV wing position
polar cutting matchine animation..... inside hows work.
Your videos make me happy. Instead of my wife, i have a photo of you in my wallet along with electroboom.
Thanks for making these videos. They always get me thinking.
Thang the mang 👍
The plate on which on the differential is mounted, is it only for counter rotating of rockers? If i want to use the plate for some application like mounting some mechanisms. Will the plate take the additional load as its only on a hinge. Is there any add on thing i can do for that?
Yes, The plate can bear additional loads. The plate does not rotate freely about its hinge axis because the gears and suspension prevent it.
Hi sir can you please share the CAD files of this assembly?
Links to download CAD files of this video are in the video description already.
請問這是用來做甚麼的？
Please read the video description if you need to know more about the mechanism shown in the video.
Is it possible to design a mechanism that first holds the sheets by moving the blue lever and then does the cutting work?
It could be done with a cam but the mechanism would be complicated.
Hi Thang! Got a question for you (hopefully you can settle a debate between two mechanical engineers!). Why does the bent lever arm in this design and in the old sausage stuffer design provide mechanical advantage over a lever arm that is straight? Also, do we know how much more mechanical advantage a bent lever arm like this would be over a straight lever arm? Thanks!
I think the curved shape of the lever does not affect the mechanical advantage. The reason is to avoid collision of the lever with other parts, creating favorable conditions for the operator to rotate the lever.
@@thang010146 Ah ok. So the old sausage stuffer crank arm is just for looks then? (ruclips.net/video/ggHPH_6Bsk8/видео.html)
Thanks for this again great mechanism. The animation might be a bit misleading as the supporting bar(dark blue) has to move through the floor (which is also visible in the animation). In real life I believe one typically folds up such a ladder by rotating the pink bar around its contact point with the ground.
Correct. I admit my mistake. Thanks you.
thank you, this is exactly the mechanism I need for my project.
What program do you do these with?
All videos in this channel are made in Autodesk Inventor, Dynamic Simulation.
THANK YOU FOR SHARING THESE THINGS, YOU ARE AMAZING!
😉👍 ⭐⭐⭐⭐⭐
Can you draw a machine project where we can manually sew Punch punching holes on the edges of the belt in the production of handmade leather product belts? This machine should also be able to cut along the strip where the belt is placed, in a way that curves the belt belts. I need this project. Thank you very much. sample machine TandyPro® Strap Edge Beveler and The strip on which the belt is placed to make sewing holes
Sorry, I can't. The sewing machine is a complex machine and it was difficult for me to animate.
@@thang010146 It is not a sewing machine, it is just a machine that makes sewing holes with fixed punches.
@@thang010146 google translate Wrong translation, there will be no sewing process, leather only drilling process
Please give me sketches, pictures or videos describing your requirements. My email: thang010146@gmail.com. I will help you if I can.
@@thang010146 Thank you very much . Regards
Hello, why does the pink part have teeth?
Probably to reduce weight and save materials.
Thats gonna be a funky construction aite
Increase Triangular pressure bar slope, cut a screw female part, screw rod shall be upto the travel area. Rest part will be attached to the machine body through a bush. The pressure dial steering will not up or down, only pressure bar will travel as required.....also please enrich the drawing with horizontal length dial gauge for paper backward forward movement.
I saw your design. Very detailed. But bring it to your notice, the paper pressure clamp middle nut shall be a bush locked with circlip. The lower portion of the clamp is to be designed in such a way that it moves up and down, when pressure wheel 🛞 steers.
Thanks for the tip!
@@thang010146 whenever you upload design, please update me. Thank you very much.
I think if you have subscribed to my channel, you will automatically receive notifications about my newly published videos.
Very nice😮
do you know why the cutter needs to slice at an angle? why does it not just go straight down
I am an enthusiastic follower of yours. However, this design unfortunately falls short.
For your reference: This design is a modification of the design shown in figure 2, pages 1-50 of the book: Illustrated Sourcebook of Mechanical Components archive.org/details/Illustrated_Sourcebook_Of_Mechanical_Components
That's because you didn't read the description
Still waiting for the parcel drop. Apparently this is an impossible machine to conjure up. Thang can design everything else on the planet but not this. He admitted this to me a year ago. Not wanting to wait I made two of them myself.
Ahh, does it not bind (from rotation) because the rack points to the center of the paper, so it stays balanced?
The blue lever must be large enough to hold the green slider in the upper position (when the lever is on the left)
The spring would have to be stronger than the thrust force, correct?
Yes.
😅😅😅😅😅@@thang010146
@@thang010146😅😅
I like how simple these designs are :).
Glad you like them!
??
Have you read the video description?
I think you were expecting an animation. None is required for this one 😅
This design is a modification of the design shown in figure 2, pages 1-50 of the book: Illustrated Sourcebook of Mechanical Components archive.org/details/Illustrated_Sourcebook_Of_Mechanical_Components
Kkk yeah. now, reading the description i got it. I really expect the animation showing something.
why the piston is not moving?
The two pistons have small displacement because the blue cam has a small eccentricity. These shifts are difficult to detect. So sorry.
Bonjour, est-ce possible de savoir le logiciel que vous utilisez. FreeCAD, peut-être. Merci.
All videos in this channel are made in Autodesk Inventor, Dynamic Simulation.
This was all I needed
What are some good resources for exploring mechanical design, in your opinion?
My videos are built up based on following sources: - Textbooks - The Internet - Requests from RUclips viewers - What I see in practice or I imagine. My favorite books: 1. С. Н. Кожевников и другие, Механизмы, Москва, 1965, 1060 стр. 2. I. Artobolevski, Mechanisms in modern technic, Moscow 1977, 7 vol. 3. Sclater & Chironis, Mechanisms and Mechanical Devices Sourcebook, 2001, 485 p. 4. Henry T. Brown, 507 Mechanical Movements, New York 1908,122 p. 5. А. Ф. Крайнев, Словарь Справочник по Механизмам, Москва, 1987, 561 стр. 6. Mechanical Fixtures Tooling
this also works for rack and pinion. you should publish a variant just so the channel has absolutely everything searchable
That's amazing, it gives me some inspiration for my own design. Thank you very much.
Glad to hear that!
Hello! Do you have any mechanisms that could turn continuous motion into walking mechanisms? Or anywhere to start would be great
Please refer to pages 154 - 158, Part 4 of my book: 3200 ANIMATED MECHANICAL MECHANISMS www.mediafire.com/file/muio0i3hyvnhtj6/3200AMMe.zip/file
@@thang010146 thank you! I’ll check it out and report back
how do you make those animation? i didnt knew inventor could deform a spring into an animation
All videos in this channel are made in Autodesk Inventor, Dynamic Simulation. For spring animation, use the “Spring/Damper/Jack” tool in the “Insert Joint” box.
@@thang010146 fantastic, thank you!
А можно придумать что-то для того чтобы крылья легко вращались как у птицы!!?
ruclips.net/video/hUE8o056Cpc/видео.html
@@thang010146 спасибо, но я хотел бы понять механизм, который с помощью мышц человека, может поднять его в воздух, рычаги или шестерни?
Насколько я знаю, такой механизм человечеством еще не изобретено.
@@thang010146 с помощью рычагов или шестерни, можно это сделать, без электричества и гидравлических элементов
Wow fantastic chanel good luck ❤
Awesome - I have some brick tobacco for pipes, and was wondering how it got turned into the nice, even string cuts.
Интересно: как желтый рычаг и красный будут совершать движения если они посажены на неподвижные оси ????
They can move because there are gaps in their revolution joints.
nice design......thang...........can you make a "Challange 305" hydraulic type paper cutting video?......waiting........
I don't have documents describing its mechanism.
@@thang010146 ruclips.net/video/pKWHeY7GLDI/видео.html
@@thang010146 ruclips.net/user/shortst4yU4zpb_Wk
@@thang010146 ruclips.net/video/mrYrg6Jpjm0/видео.html
@@thang010146 ruclips.net/video/uFGDahXS8_I/видео.html
sir can i get this stp file? thank you
Link to download the STEP files has been added to the video description recently.
@@thang010146 thank you so much
ruclips.net/video/2RDp0hW3qVw/видео.html Free CAD CAM tutorial channel
А где табак?
The tobacco is placed between the green roller and yellow roller. Watch how the cutter works: ruclips.net/video/sycnACBIv9s/видео.html
I have one from 1850, my great-grandfather's bowie knife with a hole near the tip to bend a nail over in as a pivot on a log so you can lever down and slice tobacco plugs.
your awesome dude !! 👍 ⭐⭐⭐⭐⭐
How to set up wire for manual catrol?
Replace the motor with a crank. Chain or toothed belt should be used. In the case of a cable, prevent its slipping on the pulley by making multiple turns on the pulley and using a cable tensioning device.
Nice
Back lash is good or bad for gears?
In some mechanisms the backlash is necessary for them to work properly or to prevent jamming. In some mechanisms the backlash may not be desirable, for example in dividing devices. For more see: en.wikipedia.org/wiki/Backlash_(engineering)
I am struggling to design a similar mechanism, but which will require less angular rotation by force before it begins to rotate by itself. I would like to rotate the orange rim 45 degrees, and then it will rotate the remaining 135 by itself. And the same in the opposite direction, 45 degrees by force, and then the remaining 135 by itself. Maybe you will be interested to design such a mechanism? Anyway thank you for the huge amount of videos, very useful for an inspiration!
My videos related to your request: ruclips.net/video/0bRevPdhEco/видео.html ruclips.net/video/-6uhkv5A29w/видео.html