Modular Track Unit v18.01: Difference between revisions

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*Can be run with 1-20 Power Cubes
*Can be run with 1-20 Power Cubes


=Design Costs=
*29k lb tractive effort - $6k
*2 Power- Cubes for 32 hp version - $2.5k
*Hydraulic Controls - $200
*Hydraulic BOS - $500
*Steel - 15000 lb - $10k
TOTAL - around $20k for a basic prototype
*Total 10 Power Cubes for 160 hp - add $7.5k
*5000 lb blade - $5k
TOTAL - $33k for 160 hp, 29k lb traction
=Prototyping Plan=
#Build a testing rig for measuring pull. Scale attached to a large tree.
#Test the 14,400 tractive effort version first - by using 4 tracks on a simple machine - and low horsepower
#Add heavy duty blade module 5000 lb
#Test the 2-motor per track version, 29k lb traction effort, non-aggressive tracks. Determine point of spinout
#Test the aggressive tracks and determine traction advantage
=Speed Calculations=
*1 Power Cubes (v17.10) per motor gives 1.5 mph speed (based on [https://docs.google.com/presentation/d/1tB8kfA3sChpUEL0dQzfg9cUKoH3c-ooXWjsufW0bcDE/edit#slide=id.gc450889c9_0_0]
*32 hp for initial testing of 8-motor version gives 0.4 mph or 30 fpm.


=Design Costs=
=Development Template=
*320 hp, 29k lb tractive effort - $6k
<html><iframe src="https://docs.google.com/spreadsheets/d/e/2PACX-1vR78l9Ueux16Viejzptff12dfkuovY6RC0Vv6mUiwiKw9uJnn7IMQAz_rMXyIOjYxTKkv69OAW7eTNq/pubhtml?widget=true&amp;headers=false" width=500 height=500></iframe></html>
*2 Power Cubes for 32 hp version - $3k
 
*Speed - slow
[https://docs.google.com/spreadsheets/d/1Iigh5wlLJyv61ngBRyxOxHGbDCycRLHBK0vv0fbLr6w/edit#gid=1 edit]
*Power Cube
*Hydraulics

Latest revision as of 19:53, 13 January 2018

Tracks from LifeTrac v16 series.

Specifications

  • 15,000 in lb motors at 3000 PSI
  • Maximum drive horsepower for each motor - 40 hp
  • 8" sprocket, 8 tooth
  • Drive force of 3600 lb using a single drive motor
  • Design for 2 drive motors
  • Max track hp - 80 hp
  • Max track tractive effort - 7200 lb
  • Standard 4-track configuration - up to 28,000 lb tractive effort and 320 hp
  • Cost per 80 hp unit - $1500
  • Can be run with 1-20 Power Cubes

Design Costs

  • 29k lb tractive effort - $6k
  • 2 Power- Cubes for 32 hp version - $2.5k
  • Hydraulic Controls - $200
  • Hydraulic BOS - $500
  • Steel - 15000 lb - $10k

TOTAL - around $20k for a basic prototype

  • Total 10 Power Cubes for 160 hp - add $7.5k
  • 5000 lb blade - $5k

TOTAL - $33k for 160 hp, 29k lb traction

Prototyping Plan

  1. Build a testing rig for measuring pull. Scale attached to a large tree.
  2. Test the 14,400 tractive effort version first - by using 4 tracks on a simple machine - and low horsepower
  3. Add heavy duty blade module 5000 lb
  4. Test the 2-motor per track version, 29k lb traction effort, non-aggressive tracks. Determine point of spinout
  5. Test the aggressive tracks and determine traction advantage

Speed Calculations

  • 1 Power Cubes (v17.10) per motor gives 1.5 mph speed (based on [1]
  • 32 hp for initial testing of 8-motor version gives 0.4 mph or 30 fpm.

Development Template

edit

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