Soil Mixer 2019/Controller: Difference between revisions
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=Controller Requirements= | =Controller Requirements= | ||
* | *Needs to switch a double acting cylinder while running a hydraulic motor | ||
* | *Needs to cycle a dc motor for cement dosing | ||
* | *Water mister solenoid | ||
=Electronics= | |||
*Mega 2560 | |||
*Relay Shield (3A) | |||
*External Relays boards for >3A | |||
*Fused Battery Connection | |||
*High Pressure Switch | |||
* | |||
=Hydraulics= | =Hydraulics= | ||
==Hydraulic Calculations== | |||
'''Hydraulic Cylinder Volumes.''' 2.5x12x1.25 Cylinder <br/> | |||
Cap End Volume:((2.5in)/2)^2 * 3.14 * 12in =58.875 cu in <br/> | |||
Rod Volume: ((1.25in)/2)^2 * 3.14 * 12in = 14.71875 cu in <br/> | |||
Rod End Volume = 58.875 cu in - 14.71875 cu in = 44.15625 cu in | |||
{| | |||
|+style="font-size:150%"|Cylinder Travel Speeds | |||
!Flow Rate | |||
!Extend Time | |||
!Retract Time | |||
|- | |||
!5 GPM | |||
|3.06s | |||
|2.29s | |||
|- | |||
!7.5 GPM | |||
|2.04s | |||
|1.53s | |||
|- | |||
!10 GPM | |||
|1.53s | |||
|1.15s | |||
|- | |||
!12.5 GPM | |||
|1.22s | |||
|0.92s | |||
|- | |||
!15GPM | |||
|1.02s | |||
|0.76s | |||
|} | |||
==Hydraulic Diagram== | ==Hydraulic Diagram== | ||
<html><iframe src="https://docs.google.com/presentation/d/1ScpptOBN8ljrSdcZd_iyKdNUiskhitRu5VUAuOlNQTg/embed?start=false&loop=false&delayms=3000#2" frameborder="0" width="960" height="749" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe></html> | <html><iframe src="https://docs.google.com/presentation/d/1ScpptOBN8ljrSdcZd_iyKdNUiskhitRu5VUAuOlNQTg/embed?start=false&loop=false&delayms=3000#2" frameborder="0" width="960" height="749" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe></html> | ||
https://docs.google.com/presentation/d/1ScpptOBN8ljrSdcZd_iyKdNUiskhitRu5VUAuOlNQTg/edit?usp=sharing | [https://docs.google.com/presentation/d/1ScpptOBN8ljrSdcZd_iyKdNUiskhitRu5VUAuOlNQTg/edit?usp=sharing edit] | ||
==Hydraulic Circuit Simulation== | |||
= | ===20Nm Load on Motor=== | ||
20nm load derived on mixer main page in design review section | |||
Download Circuit: [[File:SoilMixerFluidSIMCircuits.zip]] | |||
Older simulations: [[/Hydraulic Simulation Archive]] | |||
{|class="wikitable" | |||
!Production-Ready Circuit | |||
|- | |||
|<html><video controls loop src="https://github.com/CabbageBreath/CabbageBreath.github.io/raw/master/Soil%20Mixer%202019/Series%20Circuit%2012-24-1.webm" height="100%" width="100%"></video></html> | |||
|- | |||
!Stepping Through This Circuit | |||
!Automated For Viewing Convenience | |||
|- | |||
|{{YoutubePopup|mH2onJqJIl8|big}} | |||
|{{YoutubePopup|xVSR72DBsYI|big}} | |||
|- | |||
|Manually stepping through circuit with narration | |||
|Automated, silent. Cylinder switched using pressure switch | |||
|} | |||
Latest revision as of 15:01, 28 December 2019
This page includes information about the entire electromechanical hydraulic control system for the soil mixer. This is a variant of CEB Press Controller v19.01
Controller Requirements
- Needs to switch a double acting cylinder while running a hydraulic motor
- Needs to cycle a dc motor for cement dosing
- Water mister solenoid
Electronics
- Mega 2560
- Relay Shield (3A)
- External Relays boards for >3A
- Fused Battery Connection
- High Pressure Switch
Hydraulics
Hydraulic Calculations
Hydraulic Cylinder Volumes. 2.5x12x1.25 Cylinder
Cap End Volume:((2.5in)/2)^2 * 3.14 * 12in =58.875 cu in
Rod Volume: ((1.25in)/2)^2 * 3.14 * 12in = 14.71875 cu in
Rod End Volume = 58.875 cu in - 14.71875 cu in = 44.15625 cu in
| Flow Rate | Extend Time | Retract Time |
|---|---|---|
| 5 GPM | 3.06s | 2.29s |
| 7.5 GPM | 2.04s | 1.53s |
| 10 GPM | 1.53s | 1.15s |
| 12.5 GPM | 1.22s | 0.92s |
| 15GPM | 1.02s | 0.76s |
Hydraulic Diagram
Hydraulic Circuit Simulation
20Nm Load on Motor
20nm load derived on mixer main page in design review section
Download Circuit: File:SoilMixerFluidSIMCircuits.zip
Older simulations: /Hydraulic Simulation Archive
| Production-Ready Circuit | |
|---|---|
| Stepping Through This Circuit | Automated For Viewing Convenience |
| http://img.youtube.com/vi/mH2onJqJIl8/0.jpg | http://img.youtube.com/vi/xVSR72DBsYI/0.jpg |
| Manually stepping through circuit with narration | Automated, silent. Cylinder switched using pressure switch |
