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Central, IA | I have been told many times that a double linkplow is the most accurate plow to grade at speed, but have never been given a good explanation as to why.
I know the front link is what is usually used to control grade and the rear is either in float or has a pressure regulated circuit on it.
What I'm lacking on is the geometry. Is the front link a true parallel link (pivot pins spaced equally)? If so, that would mean that cylinder would only adjust elevation and have no effect on pitch of the plow? I have been told before that a true parallel beam plow doesn't work well as it takes to much effort/force to raise or lower it. It would also seem that uneven terrain would have an adverse affect on a parallel beam plow as well. That explains why many plows use pitch to control grade.
Is the rear link slightly off of a true parallel to allow it to control the pitch of the shank?
I have a project in the back of my head on building a plow, but not sure if a pitch plow is the way to go or if I should be looking more into double links. I wish I could find one close to home to put a tape measure on. | |
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Explain the physics of a double link tile plow to me
