Fifth Wheel Test Machine Project Concept Evaluation

1
Fifth Wheel Test Machine ProjectConcept
Evaluation

• Group members
• Jonathan Eckart
• Wayne Farley
• Rob Grace
• Chris Bozarth
• Academic advisor
• Dr. Faryar Etesami

2
Preview

• Introduction
• Design Concepts
• Scoring Matrix
• Conclusion

SOLID MOUNT FRAME
SIMPLEX 400
SLIDING MOUNT
3
Introduction

• Fifth wheel trailer to truck connection
• ConMet wants a machine to test ultimate strength
  of fifth wheels in axial direction
• Test machine must have
• - Adjustable width and height for different
  models of fifth wheels
• - Data acquisition need to know forces required
  to fail fifth wheel

300 kip
4
Rail Cart Concept

• Fifth wheel mounts to cart
• Kingpin is fixed
• Hydraulic cylinder pushes cart

5
Power Screw Concept

• Power screw load delivery
• Load cell measures force

6
Sliding Adjustment Concept

• Posts slide inside rect. tube
• Power screws adjust fifth wheel height
• Hydraulic cylinder pulls kingpin

7
Pulley System Concept
8
Plate and Screw Concept

• Screw adjusts width
• Pin placed through rail and plate
• Hydraulic jack adjusts height of platform

9
Cylinder Mount Concept

• Centerline adjustment
  with slotted plate
• Alternative form would allow vertical adjustment
  of cylinder

10
Pivot Arm Concept

• Arm with kingpin mounts to cylinder rod
• Arm can pivot away from fifth wheel assembly

11
Mechanical Advantage Concept

• Lever arm multiplies force of cylinder
• Vertical layout

12
SCORING MATRIX
13
Conclusion

• 7 different concepts
• No single concept itself will do the best job
• Final concept will use a combination of ideas
  from the concepts generated

14
General Concept
1. Hydraulic cylinder will be used to apply force
to fifth wheel. 2. Slotted plate used for width
adjustment 3. Hydraulic cylinder moves for height
adjustment 4. Pivot points on ends of cylinder 5.
Adapter plate for kingpin-cylinder connection
15
Hydraulic Cylinder
12 DIA BORE CYLINDER CAN DEVELOP gt339000 LBS OF
FORCE USING 3000 PSI PUMP
LIFTING POINTS
PIVOT POINTS
16
Questions?