Redesign of Driving Teeth to Improve

Performance

Team Members:

Kelly Hogue

Kristen Tucker

Matthew Gassen

Buck 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 (cont’d)

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 the following:

• 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?