Sawmill Design 2: Difference between revisions
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{{Category=Sawmill}} | |||
What if we use steel sections to eliminane need for building a track? | What if we use steel sections to eliminane need for building a track? | ||
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[[https://www.surpluscenter.com/techhelp.asp?UID=2009092710404007&catname=hydraulic Hydraulic motor power]] = torque (in-lb)*RPM/63k | [[https://www.surpluscenter.com/techhelp.asp?UID=2009092710404007&catname=hydraulic Hydraulic motor power]] = torque (in-lb)*RPM/63k | ||
*Take [https://www.surpluscenter.com/item.asp?UID=2009092710404007&item=9-1184&catname=hydraulic 5000 RPM, 166 in-lb motor] for 13 hp | *Take [https://www.surpluscenter.com/item.asp?UID=2009092710404007&item=9-1184&catname=hydraulic 5000 RPM, 166 in-lb motor] for 13 hp | ||
*take [ larger motor] | *take [https://www.surpluscenter.com/item.asp?UID=2009092710404007&item=9-1889&catname=hydraulic larger motor] for 30 hp at 3500 RPM - at $250 | ||
=Bill of Materials= | =Bill of Materials= | ||
*Four .6" hub v-groove bearings - [http://www.vxb.com/page/bearings/PROD/V-Groove-Bearings/Kit8408 $25 each] | *Four .6" hub v-groove bearings - [http://www.vxb.com/page/bearings/PROD/V-Groove-Bearings/Kit8408 $25 each] | ||
*Motor for 20" blade - [https://www.surpluscenter.com/item.asp?UID=2009092710404007&item=9-1889&catname=hydraulic $250] | |||
*Motor for 10" blade - [https://www.surpluscenter.com/item.asp?UID=2009092710404007&item=9-1184&catname=hydraulic $150] | |||
*2 cylinders for lift and side motion - [https://www.surpluscenter.com/item.asp?UID=2009092710404007&item=9-7707-30&catname=hydraulic $160 each] | |||
Latest revision as of 00:51, 19 February 2011
Main > Housing > Construction > Sawmill
What if we use steel sections to eliminane need for building a track?
10x4" I-beams in the 20 lb/ft range are available - see PDF page 132 in Structural Steel Sections
Use 30" hydraulic cylinders for y and z motion in a cantilevered configuration along the steel section x axis. Absolute simplest design is obtained, if 40 and 20 hp hydraulic motors are used for a 20" and 10" sawmill blade.
High performance, 60 hp sawmill at about $1000 in parts. Another breakthrough, as similar power costs at least $25k.
Calculations
[Hydraulic motor power] = torque (in-lb)*RPM/63k
- Take 5000 RPM, 166 in-lb motor for 13 hp
- take larger motor for 30 hp at 3500 RPM - at $250