Tractors

Project: Tractors

Tools:	Wrenches, Cutters
Parts:	Frames, Nuts, Bolts, Plates, End caps, Casters, Batteries, Controllers, Wheels, Wheel hubs, Tires, Keyed shafts, Keys, Optional: Hydraulic valves, Hydraulic hoses, Hydraulic valves, Hydraulic power units, Hydraulic pistons, Hydraulic motors, Hydraulic couplers, Lights, Motors, Wires, Electrical connectors, Linear actuators, Solar panels
Techniques:	Tri joints, Three point hitches

Introduction

A tractor is an engineering vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds, for the purposes of hauling a trailer or machinery such as that used in agriculture, mining or construction. Most commonly, the term is used to describe a farm vehicle that provides the power and traction to mechanize agricultural tasks, especially (and originally) tillage, but nowadays a great variety of tasks. Agricultural implements may be towed behind or mounted on the tractor, and the tractor may also provide a source of power if the implement is mechanised.

Challenges

To do

• Purchase 3x gearboxes, motors, spindle kits
• Purchase 4x linear actuators
• Purchase 8x mounting pins for linear actuators
• Purchase truck box
• Purchase 2x rear casters
• Draw / cut gearbox mounting plate
• Draw / cut linear actuator mounting plate
• Draw / cut arm pivot plate
• Draw / cut caster mounting plate

Approaches

Light duty electric

• MRV050 or NMRV050 worm gear reducer
• MRV050 Worm Gear Speed Reducer 1" Keyed Single Output Shaft Kit
• PROGRESSIVE AUTOMATIONS 12V High Force (3000 lbs) Linear Electric Actuator PA-13
• PROGRESSIVE AUTOMATIONS Industrial Linear Actuator Stroke Size 12", Force 2000 lbs PA-17
• Gearbox mounting plate x 2
• Linear actuator mounting plate x 4 per actuator
• Arm pivot plate x 4 (can include linear actuator mounts)
• Hoist Crane Remote Control Wireless F24-60 12V
• 12 in. 450 lb. Capacity Titan Pneumatic Plate Caster, Swivel
• Bobcat Standard Quick Attach via the dxf:Bobcat quick attach plate
• Universal joint for 1 inch shaft with keyway

Bobcat tracks

• Bobcat MT52 tracks
• MT52 drive sprocket
• MT52 front idler with adjustment
• MT52 rear idler
• MT52 bottom roller

From scratch tracks

• OpenSourceEcology: Universal Track Unit

Medium duty electric-hydraulic

• 6 Quart 6 Way Hydraulic Pump Double Acting Hydraulic Power Unit 12V

References

• http://opensourceecology.org/wiki/LifeTrac
• OpenSourceEcology LifeTrac 1
• OpenSourceEcology: LifeTrac 2 Build
• OpenSourceEcology: Bulldozer
• OpenSourceEcology: LifeTrac 6
• https://www.niekampinc.com/electric-g-tractor/
• https://thinkoggun.com/
• Soletrac electric tractor
• Monarch tractor
• Wikipedia: Tractor
• OpenSourceEcology: Tractor Construction Set 2017
• OpenSourceEcology: Cory Shenk's log
• Science.org: Big Tractors Now Heavier Than Dinosaurs, Can Cause Deep Soil Damage
• Hand-E Tractor
• Tilmor Tractor