Homemade backhoe

Titou16

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Hello,

Let me present to you my homemade backhoe. I made it last years (2012) from june to august. I made it from an hydraulic kit and I designed the mechanical parts. The parts was laser cutted in a plant not far from my home. Then I assembled and welded it. Here is the first try. At this point, I only replace the cylinders with larger. I keep pipe, pump and distributors.

[video=youtube;JzjSFM7aW40]http://www.youtube.com/watch?v=JzjSFM7aW40&feature=share&list=UUbRpiLu8ju jmNDsPg1eqOlw[/video]

Three month later, this was the second version of my backhoe. simple braided Flexibles "made in china" from the kit was replaced by double braided flexibles and I used rigid pipes for places where there's no need of flexibles. I replaced the pump by a double pump. Each pump feeds a distributor. The backoe was much more efficient like that.

[video=youtube;wJ04CkH3tvI]http://www.youtube.com/watch?v=wJ04CkH3tvI&feature=share&list=UUbRpiLu8ju jmNDsPg1eqOlw[/video]

This summer I have made another bucket which is bigger and will stay the biggest for this backhoe. One meter wide and 150 liters. Whit this new godet, I designed and made an automatic coupling because I have 2 other bucket to make. With this coupling, the well may be coupled in both directions

[video=youtube;vNi59u33ztY]http://www.youtube.com/watch?v=vNi59u33ztY&feature=share&list=UUbRpiLu8ju jmNDsPg1eqOlw[/video]

I hope you are interested in this topic.

Bye

Titou16 (from France)

PS : Excuse me for English mistakes. I do not yet speak the language very well. Don't hesitate to say me when what I write is not comprehensible.
 

David

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Very nice! Don't you just love it when a project comes together.

David
 

RandyM

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:thumbsup::thumbsup:

Well done!
 

Walt

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That looks really cool!

Can you provide a web link to the source of your hydraulic kit?

Walt
 

DAN_IN_MN

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That looks really cool!

Can you provide a web link to the source of your hydraulic kit?

Walt
Keep in mind that he replaced many of the components that came with the kit.

OP, nice little machine!
 

Rbeckett

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I think that is pretty darn slick. How does it get moved from one location to the next and how much break out force does it have? Did you do all of the welding yourself or did you have it done by someone for you? The welds all appear to be excellent and the entire machine is well assembled and a very nice piece of work. The hard piping and multiple dual stage pumps is also a great improvement for speed and the ability to operate multiple functions at the same time. Makes operating the machine more fluid and life like and reduces excess loading on strain points too.

Bob
 

Titou16

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Yes, from the kit, I kept only distributors. Pump, cylinders and flexibles were replaced. The cylinders was too small (but i will use them for another project). Pump too small for the new cylinders (2x bigger) which will be used for another project too. And the flexibles "made in china" was ****.

The story from the beginning. It was a long time I wanted to make a backhoe. But the price of hydraulics components always arrested me. One day, I saw an publicity for a kit of backhoe. The price, only 1500€ (about 2000$). Very interesting. So I order it. One month to wait. But during this waiting,in a french forum, I read a post of a guy who bought this kit too and who said that this backhoe lift at only 1m60. The publicity said that lift at 1m90. There was an error on the publicity. My trailer is 1m65 tall. So this machine could not load my trailer. I phoned to the seller. We fall agree for I buy only hydraulics components, the parts to make the chassis and seat and the price was reduced at 1100€. But keep the same chassis that the kit was a mistake. I reinforced it, but it is too small and light and it tilts. I think I will make my own self designed chassis in the future, to improve stability and capabilities of the machine.

When I designed and calculed the arms of my backhoe, I realized that the kit allows to make a very weak backhoe. So I decided to change cylinders and increase the pressure of the circuit (120 bars became 160 bars and even 185 bars for a test).
 

Titou16

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I think that is pretty darn slick. How does it get moved from one location to the next and how much break out force does it have? Did you do all of the welding yourself or did you have it done by someone for you? The welds all appear to be excellent and the entire machine is well assembled and a very nice piece of work. The hard piping and multiple dual stage pumps is also a great improvement for speed and the ability to operate multiple functions at the same time. Makes operating the machine more fluid and life like and reduces excess loading on strain points too.

Bob
Thank's

I weld myself.

"How does it get moved from on location to the next"
Bob
. I'm not sure to understand this question. It is coupled behind a farm tractor like you can see in the videos.

Here some pictures of making and calculs :

I let you. In France, it is time to go to bed.

Bye

Titou16
 
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pestilence

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I have nothing to add. I just wanted to say that this is awesome!
 

GK1918

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absoulty georgeous dont bad I got trouble spelling my own name. two stage pumps way ta go
 

n3480h

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Bravo! Well done. I would say your English is much better than my French. The backhoe is very cool.

Tom
 
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Very nice work!

Do not concern yourself about your use of English. We were all able to understand your meaning, which is what matters!
 

Goat Driver

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Très beau travail. Vos soudures air vraiment bon!

Quelle est la taille tracteur chevaux utilisez-vous avec elle?



Very nice work. Your welds look really good!

What horsepower size tractor do you use with it?
 

Ray C

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Very good and interesting. You must be very good with CAD and stress analysis.

Great Job.


Ray
 

Titou16

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In response to Rbeckett at his question : how much break out force does it have?

I don't know. Here in France, when we rent a excavator, this is the weight of the machine which is considered. By example, I rented a 2,7 tons excavator several time before I made my backhoe. But I didn't know how break out forces they had. So it is not easy to response.
However, if it is the maximum force applied on the teeth of the bucket, it is about 1,6 tons provided by the bucket cylinder.

In response to Goat Driver at his question : What horsepower size tractor do you use with it?

I have two tractor. One Mc Cormick FU 237 D (1962) which is 30hp. And the other is a Mc cormick 423 (1967) 40hp. The 237 is better because it has a front loader. The 423 is easily displaced by the backhoe when it is digging.

In response to Goat Driver at his question : DAN_IN_MN :What CAD did you use?

Solidworks
 

DAN_IN_MN

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I noticed that you have a fair amount of sliding going on with your outriggers. Take a look at this guys outriggers and what he uses to keep from sliding around. I'm sure his machine is a lot lighter than your tractor.

[video=youtube_share;a9lmPVXMprk]http://youtu.be/a9lmPVXMprk[/video]

Maybe if you added a larger foot that would have more surface area.
 

Titou16

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Here are my 2 tractors.

The Mc Cormick FU 237D
FU237D.jpg
The IH 423
IH423 02.jpg
This two tractors were made in France. I don't know if this models did exist in US.

DAN_IN_MN > Yes, you re right. It slide a lot. But only with the 423. Because the Backhoe's force raise up the rear wheels without difficulties. And because there is no brake in the front wheels, the tractor is easily moved away. With his front loader, the 237 has not this problem. In the video I notice that the ground is soft to dig. No stones. In this conditions, I have no big problem even with the 423. But in my home the ground is much more hard with a lot of limestone.
However this chassis is not well adapted. Like I said above, I have to design a new one more appropriate. This one is not enough wide.

But for the moment, I keep this one, because I have a lot of new projects. I will made a wood grinder. The plans are ready to cut the sheet metal. But the taxes are fallen this week... And I have to wait 2 months before order the cutting (the taxes in France :angry:...).
I have another project which may interest you I think. I want to modify this antique lifter :

Manitou MC6.JPG
I want to install this mast on it :
mat Boss 01.jpg
(I had installed it on the 423 but it is very very dangerous so I quickly stopped to use it).
This mast lift at more than 5,2 meters. With a nacelle, it is possible to work at 6,5 meters from the ground. Interresting to work on the frame of my future shed and other works.
And I will made a dump to transform it into a dumper. The problem whit my backhoe is that it is not easy to approach enough the trailer in all the case to load it. So a dumper is easier to approach.
And the last modification is to install hydraulics brake because this machine don't brake at all. My 237 have the same problem and I have installed a car brake system on it. I will make the same thing on the lifter.

Here a few pictures more of the making of my backhoe :

Machining the blade (special steel called "creusabro" here) :
Fabrication lame 01.jpgFabrication lame 02.jpgFabrication lame 03.jpg
Welding the bucket :
Fabrication godet 01.jpgFabrication godet 03.jpg
Pre heating of the blade :
Fabrication godet 04.jpgFabrication godet 05.jpg
Making of the front arm :
fabrication av bras 02.jpgfabrication av bras 03.jpgfabrication av bras 07.jpg

Painting
Peinture 01.jpgPeinture 02.jpg

Bye

Manitou MC6.JPG mat Boss 01.jpg Fabrication lame 01.jpg Fabrication lame 02.jpg Fabrication lame 03.jpg Fabrication godet 03.jpg Fabrication godet 04.jpg Fabrication godet 05.jpg fabrication av bras 02.jpg fabrication av bras 03.jpg fabrication av bras 07.jpg Peinture 01.jpg Peinture 02.jpg Fabrication godet 01.jpg FU237D.jpg IH423 02.jpg
 

ktmmudd

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Congratulations on finishing the backhoe. By the way, those are some very nice welds.
 

Titou16

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Thank you very much.

Thank you all for your welcome. I will come back soon to show you my wood grinder when it will be done.

Bye

Titou16
 

Rick Leslie

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C'est une belle machine.

Forgive me; I cheated and used Bing for the translation. Your work is very professional. I work around heavy equipment such as excavators and loaders and I've often wondered how hard it would be to fabricate one in the garage. Yours looks like it came from a factory. Excellent work.
 

Titou16

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C'est une belle machine.

Forgive me; I cheated and used Bing for the translation. Your work is very professional. I work around heavy equipment such as excavators and loaders and I've often wondered how hard it would be to fabricate one in the garage. Yours looks like it came from a factory. Excellent work.
Thank you very much for congratulations.

I use often google translate to verify if what I wrote is correct. And sometimes, I need it when I don't know a word.

Bye
 

Glmphoto

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Very nice work and a lot of it. I wish I had a use for one. Thank you for the post!!!
 

jfcayron

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Thank you very much for congratulations.

I use often google translate to verify if what I wrote is correct. And sometimes, I need it when I don't know a word.

Bye
Superbe boulot, mon pote :)
 

MELROG

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Hello I love the backhoe, both the design and the workmanship. I have been looking at building one for a long time but could not find a design that I liked. Most of the other designs do not look like they would stand up to long term use. Your design is far superior to any others I have seen! What size plate did you use for the arms 13mm or 19mm? I would love to build a copy of your project if I could , would you be willing to sell a copy of your design or plans? I have a small farm and a tractor mounted backhoe would be very useful. thanks MELROG
 

arvidj

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+1 on wanting to know if the plans are available.
 
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