Subject:
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Re: Purpose of part 32072
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 29 Jan 2004 17:14:53 GMT
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Viewed:
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1851 times
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I'm thinking that given the compact design of the backhoe digger, it's been
used in this instance to perhaps get around the fact that the three-cylinder
engine might get in the way.
Trying to remember the instructions from memory (at work right now), I think
it uses push rods to connect to the from wheel pivots, thus allowing the
engine to sit nice and low in the nose of the vehicle.
This would have been possible using normal crown gears, but as others have
stated, this eases the alignment of the steering.
"Øyvind Steinnes" <phoenix@online.no> wrote in message
news:HrnCM4.78G@lugnet.com...
>
> "Jindroush" <jindroush@nospam.seznam.nospam.cz> wrote in message
> news:40080449.557759C4@nospam.seznam.nospam.cz...
> > Brian Davis wrote:
> > > Not sure how it's used in the backhoe, but I can think of two nice • things
> > > about it: (a) two can work together at any opening angle, forming a • bevel gear
> > > set at non-90-degree angles, and (b) with the studless construction, • two
> of
> > > these form a bevel gear connection that doesn't require beams to push • against.
> > > How are they used on the backhoe?
> >
> > My 'technical' english is quite bad, but...
> >
> > They use it for steering. On of those is on the axle, driven by the
> > 'siren' on the roof, it turns two other which are on 90-degree angle,
> > each one connected to short arm with towball axle which is connected to
> > steering link which is connected to another towball which turns the
> > wheel.
> >
> > So, they're used as 4 teeth bevel gears. I just wondered why, I'd use
> > normal bevel/crown gear. (I'm rather inexperienced technic builder who
> > just woke from his dark age).
>
> I also wondered why they used this gear in the backhoe-model when I built • it
> the first time. If I should have constructed it myself, I would also have
> used the normal bevel or crown gears. The angle between the gears in the
> model is fixed, and there is suport behind the gears so there sould be no
> problem with the normal gears getting out of possitions. Another thing is
> that there is no heavy force that this gears should drive so they do not
> need to be very strong. There is only one drawback with this gear, it is • not
> very accurate, it is too much space between the "tooths".
>
> The only thing that comes to mind is that LEGO probably tries to show us
> builders that there are many ways to use a brick. This was a new thing to
> me, and maybe I will use this in another setting later, now I know how to • do
> it.
>
> I also read in the "technic beam/brick" tread and think it is the same way
> with this new bricks that LEGO is making, they are not trying to make new
> bricks ONLY because some of them maybe "looks cooler". I think they are
> trying to give us more options to build with. I think these new bricks are
> great, but since I'm an old Technic fan with over 20 years experience with
> the normal gears and studed bricks I have a hard time to get used to new
> ways of building. But I try...
>
>
> Regards
> Øyvind Steinnes
> http://www.brickshelf.com/cgi-bin/gallery.cgi?m=Phoenix
>
> >
> > --
> > Jindroush <jindroush@nospam.seznam.nospam.cz>
> > Remove both 'nospam's from the address to reply.
>
>
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Message is in Reply To:
 | | Re: Purpose of part 32072
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| "Jindroush" <jindroush@nospam.se...nospam.cz> wrote in message news:40080449.557759...spam.cz... (...) things (...) bevel gear (...) of (...) against. (...) I also wondered why they used this gear in the backhoe-model when I built it the first (...) (20 years ago, 17-Jan-04, to lugnet.technic)
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