Burkert Valves

[widow_twanky]

Re: Burkert Valves

Well, stripped it all back to the two cables used as power supplies (one for axe, one for flipper) re-wired it all ste it to work and........................nowt................... .......nowt....................................ver y small barely audible click!!

Went further back and got to a sealed junction which is left over from the original wiring Dennis did. Turns out there's a 3w, 100ohm resistor in line with everything on the power side!!

Took it out, works perfect.

Andy

[widow_twanky]

Re: Burkert Valves

Well it worked stonking big woosh and then lifts the robot off the floor at the front which its never done before and that was at 25 bar. Axe needs a bit more thought because it seems to have a bit of a problem on the reveiver but that's easy to sort out.

Flipper keeps getting stuck up because the rams got such a long stroke and it jack knife's. Not sure the best approach to that. Can't really move it forward as the motors are in the way so I was thinking about knocking 100mm off the stroke (250 atm) seems taking 50mm off the body of the ram and arm then sticking some hdpe in the body to sort out the other 50mm would work. (all done very properly you understand!!)

This would make the strike plate hit at a bit more of a sensible angle. Any thoughts on that anyone?

Andy

[botmad]

Re: Burkert Valves

Hi Andy I use hdpe in my ram to reduce the stroke works for me
also if you modify and need a longer travel just remove the hdpe
no need to buy a new ram


:wink:

[widow_twanky]

Re: Burkert Valves

Hi Andy I use hdpe in my ram to reduce the stroke works for me
also if you modify and need a longer travel just remove the hdpe
no need to buy a new ram


:wink:

Does it actually need to be fixed to anything or can you just wrap it round the ram and leave it loose?

[botmad]

Re: Burkert Valves

I Have 3 X 30mm hdpe doughnuts slipped over the shaft of the ram and float up and down in the cylinder ........

[widow_twanky]

Re: Burkert Valves

was testing the pneumatics on hydra on saturday and found that there appears to be some bypassing of the burkert valves going on. They seem to be letting some smal amount of flow through whilst they're de-energised. Fine until you shove em on an axe and it starts moving!!!! :shock: :shock:

Had a look inside and the seal which closes the valve looks relatively well worn. Is it possible to replace these or can i just remove them and turn them round or replace them with a machined ptfe alternative?

Andy

[terry]

Re: Burkert Valves

ive managed to get the wearing parts kits for these valves as ive broken 2 solonoid shafts !
they are only £25 per kit, lots cheaper than new valves.

[widow_twanky]

Re: Burkert Valves

ive managed to get the wearing parts kits for these valves as ive broken 2 solonoid shafts !
they are only £25 per kit, lots cheaper than new valves.

where did you get them from mate??

[terry]

Re: Burkert Valves

some where in norwich, ive mislaid the invoice so cant remember the name, they didnt post it to me i had to collect, but could always collect some and take to an event.
I will find invoice soon and let you know.

[Thunder arrow]

Re: Burkert Valves

norwich that is sooo useful for me
(10 mins away sweeeet)

[terry]

Re: Burkert Valves

found the invoice the company is

parker hydraulics and pneumatics limited.

norwich , norfolk.

www.parkerhydraulics.co.uk

[robotic_ants]

Re: Burkert Valves

LOL! Terry I also pm'ed you the company's name a few days back.

You should also be able to get the kit from other offical Burket distributors as well

http://www.burkert.co.uk/ENG/949.html

[beast]

bumping this thread for clive