Dairy Milker/Research Development

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• Article Title: Dairy Milker/Research Development

Research

Wanted: Brief description about the highest version of the GVCSTool

Theory

Wanted: Brief paragraph regarding the reasoning behind adding this tool to the GVCS

Relevant Links

Milking and Milk Quality

Building Your Own Dairy Milking Unit

Conceptual Notes

Wanted: Ifs, ands and buts.

Development

Overview

• Milking Unit are the components that attach to the dairy cow and produce pulses for alternating vacuum/atmospheric air entry cycles

• Vacuum System is the components that produce and regulate the vacuum level

• Milk Flow System is the components that accumulate milk and pump it to a bulk tank

• See page 8 of link "Milking and Milk Quality" for a full diagram

• Simplified Dairy Milker

Milking Unit

• Includes the pulsator, teatcups, short and long milk tubes, short and long pulse tubes, and the claw.

• Claw
  • Simply a component that connects ports to more ports
  • From 1 port for the long milk tube to 4 ports for the short milk tubes
  • From 1 port for the long pulse tube to 4 ports for the short pulse tubes

• Teatcup
  • The teatcup is comprised of a shell and liner, the liner being attached to the dairy cow's teats during the milking process.
  • Do we want metal or hard plastic teat cup shells? Assume stainless steel for its durability
  • Do we want rubber or silicone teat cup liners? Assume silicone for its durability
  • Do we want an integrated or separate short milk tube? Assume separate
  • The teatcup has an opening for the short milk tube, one for the short pulse tube, and one for the liner mouthpiece
  • The teatcup liner is comprised of a mouthpiece and barrel

• Pulsator
  • Small machine that alternates between applying vacuum at the teatcups and admitting air at atmospheric pressure to the teatcups
  • Normal pulsator rate (rate of opening and closing) is 60 per minute. Pulsation ratio (vacuum time to air entry time) can be 50:50.
  • 1 port to pulse line to vacuum reservoir
  • 1 port to long pulse tube to claw
  • 1 port to atmosphere
  • Runs on DC current, usually 12V or 24V

Vacuum System

• Vacuum Gauge
  • Placed inline with the pulsation lines and also between the vacuum reserve tank and vacuum regulator
  • Measures vacuum pressure
  • 2 ports

• Vacuum Reserve Tank
  • Distributes vacuum to the pulsation header lines and milk header line
  • Buffers the vacuum level for when air enters the vacuum system
  • 1 port for milk header line
  • 2 ports for pulsation header lines
  • 1 port for main vacuum supply line

• Vacuum Pump Filter
  • Prevents particulates from entering the vacuum pump
  • 1 port for intake to main vacuum supply line
  • 1 port for outtake to line to vacuum pump

• Vacuum Pump
  • Applies a partial vacuum in the system
  • 1 external port
  • 1 vacuum port

• Vacuum Regulator
  • Prevents vacuum level from increasing excessively by allowing air into the vacuum system when the vacuum level reaches a preset value
  • 1 external port
  • 2 inline ports

• Vacuum Relief Valve
  • Prevents vacuum level from increasing excessively by allowing air into the vacuum system when the vacuum level reaches a preset value in case the vacuum regulator fails
  • 1 external port
  • 2 inline ports

• Sanitary Trap
  • Separates the air-only vacuum system from the milk collection system
  • Prevents liquid and particulates from the milk collection system entering the vacuum system
  • 1 port to vacuum system
  • 1 port to milk flow system

Milk Flow System

• Milk Receiver Jar
  • Collects milk from the milking units
  • 1 port to vacuum system
  • 2 ports to milk pipelines
  • 1 port to milk pump

• Milk Pump
  • Pumps milk from the milk receiver jar to the bulk tank
  • 1 port to milk receiver jar
  • 1 port to milk filter

• Milk Filter
  • Prevents particulates from entering bulk tank
  • 1 port to milk pump
  • 1 port to bulk tank

• Bulk Tank
  • Main collection container for milk
  • 1 port to milk filter
  • 1 port to sink for yielding milk

Design

• Requirements
• Speed
• Throughput
• Weight
• Size Constraints
• Feed stock
• Design Description
• Calculations
• Drawings and Diagrams
• Concept and Alternatives
• Full Design Views
• Cut-away Views
• Exploded Parts View
• 3D Renders
• Decisions
• Project Team

Industry Standards

Industry Standard	GVCSTool

Funding

Wanted: List of expenses for prototyping and documenting GVCSTool

Peer Reviews

Wanted: Peer reviews from the scientific community regarding the R&D of GVCSTool

Experiments and Prototypes

Wanted: Empirical data on performance