Mity Lifts Inc
description
Transcript of Mity Lifts Inc
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MI’TY LIFTS, INC.
Tyrel RuchMike
HolzerMI’TY LIFTS, INC.
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MTL – 6000Portable
Automotive Hoist
MI’TY LIFTS, INC.
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Concept To create a means for
the do–it-yourself home mechanic to work under their
vehicle safely and comfortably.
MI’TY LIFTS, INC.
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Concept
MI’TY LIFTS, INC.
INITIAL DESIGN IDEAS
Self contained, portable design.
Freestanding – not permanently mounted.
DC Electric motor powered.
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Concept
MI’TY LIFTS, INC.
INITIAL DESIGN IDEAS
Lead screw driven.
Programmable Logic Controller (PLC Drive).
48” lifting height.
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IndividualResponsibili
tiesMI’TY LIFTS, INC.
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Responsibilities
MI’TY LIFTS, INC.
TYREL RUCH Design Hoist arms and saddle
assembly. Design hoist arm locking system. Research materials and
components for design.
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Responsibilities
MI’TY LIFTS, INC.
TYREL RUCH Create detail drawings for
designed parts. Gantt charting &
presentation.
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Responsibilities
MI’TY LIFTS, INC.
MIKE HOLZER Design lead screw drive system. Design weldment assembly and
sheet metal. Research materials and
components for design.
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Responsibilities
MI’TY LIFTS, INC.
MIKE HOLZER Create detail drawings for
designed parts. Final package & presentation.
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Benchmarking
MI’TY LIFTS, INC.
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MI’TY LIFTS, INC.
Large Commercial Size No Portability Expensive
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MI’TY LIFTS, INC.
Bulky Components
No Arm Position Locks
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MI’TY LIFTS, INC.
Electric Motor & Hydraulic
Pump
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MI’TY LIFTS, INC.
Hydraulic Piston & Chain Lift
System
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MI’TY LIFTS, INC.
Limited access to undercar components Separate power unit Requires blocking to support pinch weld
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MI’TY LIFTS, INC.
MI’TY LIFTS, INC. PROPOSAL
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Proposal Our portable
automotive hoist will be capable of safely lifting a vehicle of up
to 6000 lbs to a maximum height of 48” for the home
user. MI’TY LIFTS, INC.
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MI’TY LIFTS, INC.
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MI’TY LIFTS, INC.
Drive Components
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High power demand
NoisyPower Head
Drawbacks to StandardDrive Systems
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Minimal power demandQuieter operationIntegrated components
Our Lead ScrewDrive System
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1½ -4 Acme Lead ScrewBronze Drive DogTorque required to lift 3000 lbs. = 413.70 IN-LB
Lead Screw Design
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9:1 Gear Ratio20° Pressure Angle20 tooth drive gear/180 tooth driven gear
Torque required to lift 3000 lbs. = 17.01 IN-LB
Gear Reduction
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Dayton 1F7981 HP – 1750 RPM115V AC / 90V DC10.0A at full load
Motor Selection
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Max Torque – 36.5 IN-LB
Integrated motor speed controller and brake.
Reversible
Motor Selection
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1” x 48” SS Support RailsHigh Performance Self Aligning Linear Ball Bearing
Maintains hoist saddle alignment
Support Rail System
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MI’TY LIFTS, INC.
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MI’TY LIFTS, INC.
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1750 RPM Motor Speed9:1 Gear Reduction Ratio194.44 RPM Screw Speed4 Threads Per Inch48.61 Inches Per Minute.810 Inches Per Second
Lifting Speed
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¾ - 10 Anchor bolts.Permanent floor mounted anchors.
Ensures solid floor positioning.
Floor Mounting
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MI’TY LIFTS, INC.
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Arm locks disengage at lowest hoist position.
Arm locks engage once hoist is lifted 1”.
Arm Swing Locks
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Handle allows for positioning of arms when hoist saddle is raised.
Ensures proper position of hoist arms during operation.
Arm Swing Locks
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MI’TY LIFTS, INC.
Arm Swing Lock Disengaged
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MI’TY LIFTS, INC.
Arm Swing Lock Engaged
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MI’TY LIFTS, INC.
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MI’TY LIFTS, INC.
Arm Design
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MI’TY LIFTS, INC.
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MI’TY LIFTS, INC.
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MI’TY LIFTS, INC.
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Outside Resources
MI’TY LIFTS, INC.
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Outside Resources
MI’TY LIFTS, INC.
DAVID GOLDMANDAMON WRAY
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Outside Resources
MI’TY LIFTS, INC.
Owner, Boulevard Sinclair Inc., Minnetonka, MN
35+ years experience
DAVID GOLDMAN
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Outside Resources
MI’TY LIFTS, INC.
Service Technician,
Boulevard Sinclair, Minnetonka, MN 24 years experience
DAMON WRAY
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Deviations
MI’TY LIFTS, INC.
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Deviations
MI’TY LIFTS, INC.
No self contained wheels for positioning.
Use of permanent floor mounted anchors and anchor bolts.
No PLC necessary for control.
FROM INITIAL DESIGN IDEAS
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COSMOS
MI’TY LIFTS, INC.
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The FutureOf this Design
MI’TY LIFTS, INC.
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The Future
MI’TY LIFTS, INC.
Place controllers on both sides for ease of use.
Design a mechanical latching system for the saddle.
FUTURE DESIGN CHANGES
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The Future
MI’TY LIFTS, INC.
Re-integrate a Logic Controller into the design for better operation.
Design a more efficient and durable method of pairing the hoist sections.
FUTURE DESIGN CHANGES
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What We Learned
From This ExperienceMI’TY LIFTS,
INC.
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Learning Objectives
MI’TY LIFTS, INC.
Perform stress analysis calculations to ensure robust design.
Use of SolidWorks to create models, sub-assemblies, completed assemblies, detail drawings, and animations for demonstration purposes.
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Learning Objectives
MI’TY LIFTS, INC.
Using SolidWorks Explorer to rename and organize each component to increase design functionality.
Using symmetry and simplicity in the design of each component.
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Learning Objectives
MI’TY LIFTS, INC.
Working together as a team to develop the product and to integrate design changes.
Consult with outside sources toward improvement of our design.
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Advice toFuture
StudentsMI’TY LIFTS, INC.
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Recommendations
MI’TY LIFTS, INC.
Define clear goals for each team member.
Select a project with which you are already familiar.
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Recommendations
MI’TY LIFTS, INC.
If offered, choose an internship or mold and tool design course instead of Capstone. Your time would be much better spent.
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Recommendations
MI’TY LIFTS, INC.
Carefully research the product which you intend to design. Somebody may already offer something very similar…
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Max – Jax Brand 6000 LB Portable Hoist
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PartingShot
MI’TY LIFTS, INC.
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MI’TY LIFTS, INC.
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Questions?
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Intelligent Questions?
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Thank You