Redesign of Driving Teeth to Improve Performance

Team Members:Kelly HogueKristen TuckerMatthew GassenBuck Melton

Prepared for CONEQTEC Universal and BAE 4012

by

Mission statement

• Blue Diamond Machinery strives to improve products by implementing high quality designs, increasing efficiency, and surpassing the demands of our clients.

Project sponsor

• CONEQTEC Universal

• Manufacturer of skid steer attachments

• President Gary Cochran

Production Model

• Minimal cutting depth• To increase depth of

cut, the diameter of the blade must increase, therefore, increasing the weight of the attachment.

Provided by CONEQTEC

Problem Statement

• Increase cutting depth to greater than blade radius

• Improve prototype to increase useful life

• Prohibit hydraulic motor from descending into debris piles

Features of prototype

• Depth of cut is close to blade diameter– 18 inches deep. 2.5 inches wide

• Powered by hi-flow hydraulic system– 40 hp input to hydraulic motors

• Laterally adjustable

• CONEQTEC patented design

Rock Saw Prototype

Provided by Coneqtec

Statement of Work

• Increase useful life of gear teeth from less than 50 hrs to over 100 hrs.

Statement of Work (cont’d)

• Prevent hydraulic motors from descending into debris

Statement of Work

The longevity problem of the rock saw is due to wear on the gear teeth attached to the saw blade.

Options:• Redesign gear mesh• Increase wearability

of gear teeth

Statement of Work (cont’d)

Test for increase in wearability of gear teeth after instituting

• Surface treatments

• Surface coatings

• Harder material

Statement of work (cont’d)

Prevent hydraulic motors from descending into debris

•Install a ski guard on motors

•Install a stop on depth control

Research

• Patents– Rim driven– Cutting (Concrete)

• Literature– Track Trenchers– Rock Saws– Surface Treatments– Surface Coatings– Gear configurations

Research (cont’d)

• CONEQTEC Patents– Slot cutter depth control– Auxiliary implements attachments

Possible Solutions

Increase useful life of gear teeth

• Change gear tooth material

• Increase tolerance of gear mesh

• Surface treatments

• Surface coatings

Prototype Ring Gear Teeth

Prototype Gear Mesh

Possible Solutions (cont’d)

Institute Alternative Design• New gears mesh into blade eliminating current

ring teeth wear

Alternative Design Cont.

• Gear guards are installed on blade to protect blade from gear mesh wear

Alternative Gear Mesh Design

Proposed BudgetMaterials  

gear guards $ 100.00

driving gears $ 214.00

miter gears $ 156.00

Treatments  

speedliner coating $60.00

surface treatments TBD

Testing  

motor $ 200.00

testing debris $ 20.00

testing container $ 15.00

testing plate $ 70.00

   

Total Cost (approximately) $ 835.00

Project Schedule

• Fall Semester– Patent Search– Design Concepts

• Spring Semester– Fabrication– Testing– Final Design

Thank You

• Gary Cochran and CONEQTEC

• Dr. Paul Weckler

• Jana Moore

• BAE Lab

At this time

we would like

to open the floor to

any

QUESTIONS?