Transcript Hecogear_Introduction
Distributor Training Session – Planetary Speed Reducers
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Torque vs. Speed Torque Multiplied Speed Reduced www.hecogear.com
Chain & Sprocket Reduction Advantages – Single Reduction is Common Low Cost – Common Components Disadvantages – Safety Concerns – Maintenance – Life Span – Space Requirements www.hecogear.com
Offset Gear Reducer Single & Multiple Reduction High Ratios Available Advantages • Through Shaft Mount • Readily Available • Low Cost Disadvantages • Not in Line • Reversal of Rotation • High Shaft Bearing Loads • Relatively Low Efficiency www.hecogear.com
Worm Gear Reducer High Ratios Advantages – Self-Locking – Small Size Disadvantages – Very Low Efficiency – Self-Locking www.hecogear.com
AC Variable Speed Drive Inverter Vector Servo Advantages – Price, no power unit Disadvantages – Hazardous Environments – Washdown Environment – Bearing Loads www.hecogear.com
Planetary Gear Reducer Single, Multiple, and Compound Reduction High Ratios Available Advantages – High Efficiency – Output Rotation Same as Input Rotation – Readily Available – Low Cost per in.lb Torque – Compact Size – High Shaft Bearing Loads – Balanced Design Disadvantages – Through Shaft Not Available www.hecogear.com
Reasons to Sell Reducers Profitable – Selling reducers is profitable Sell the Complete System – When you work on the design and specifications, why let someone else sell the reducer.
Reducers Help Solve Application Problems – The use of the HECO reducer can solve application problems such a cogging, side load, high torque requirements, and space limitations Offer Customers a Single Product Source – If your customer has to look to someone else to supply products, you open the door to competition.
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Model 16 Single Reduction www.hecogear.com
Model 20 Single Reduction www.hecogear.com
Model 20D Double Reduction www.hecogear.com
Model 50 Single Reduction www.hecogear.com
Model 50D Double Reduction www.hecogear.com
Model 52D Double Reduction www.hecogear.com
Model 52T Triple Reduction www.hecogear.com
LSHT Hydraulic Motor Input Low Speed – High Torque (LSHT) Single Stage Reduction and LSHT Motor Delivers Efficient Low Speed – High Torque Output Wide Variety of Motor Displacements and Efficiencies to Suit Application Low Motor Cost Bearingless Motors Available www.hecogear.com
LSHT Hydraulic Motor Example
2000 Series Model 16 Eaton Motor (in 3 /rev)
4.9
6.2
8.0
9.6
11.9
14.9
18.7
24.0
times 5.2:1 ratio
Equivalent Motor Size (in 3 /rev)
25.4
32.2
41.6
49.9
61.9
77.5
97.2
124.8
Torque (in.lbs)
10,586 13,577 17,720 20,942 24,854 22,093 26,695 27,439
Pressure (psi)
3000 3000 3000 3000 3000 2000 2000 1750 www.hecogear.com
LSHT Motor vs. High Speed Motor
LSHT Motor
– Single Reduction – Low Speed, Single Reduction Keeps Heat Low and Efficiency High – LSHT Motors are Usually Low Cost – Single Reduction and LSHT Motor Equals Efficiency of High Speed Motor with Double Reduction
High Speed Motor
– Multiple Reduction – High Speeds and Complex Gearing Develop More Heat and Efficiency Loss through Multiple Reductions – High Speed Motors are Usually Expensive – High Speed Motor is More Efficient, Double Reduction Reduces Efficiency www.hecogear.com
Heco’s Primary Competition
HECO with Hydraulic Motor
– Inherently Variable Speed – Small Package at Point of Use – Control of Acceleration to Maximize Component Life and Minimize Horsepower – Can be Used in Hostile Environments with No Special Precautions
Electric Motor Gearbox
– Complex and Expensive Speed Variation – Large Total Package Size at Point of Use – Electric Motor Requires High Horsepower to go from Zero to Full RPM in a Short Time – Special Motor Required for Wet or Explosive Environments www.hecogear.com
Cost Comparison
Model 16 with Bearingless Motor vs 10,000 Series Eaton
Eaton 2000 Eaton with 2000 Heco 16 Eaton 10,000 Cu.in/rev List-Price 4.9
$323 6.2
$328 Cu.in/rev List-Price 25.48 $1,228 32.24 $1,233 Cu.in/rev List-Price 20.65
29.22
$1,621 32% $1,649 34% 8.0
11.90
$331 $342 41.6 $1,236 61.88
$1,247 40.55
57.36
$1,685 36% $1,742 40% www.hecogear.com
Electronics – RE Magnetic Pickups www.hecogear.com
Electronics - Features & Benefits Enclosed Pick-up Point – Eliminates false signals and clogged signal points Integral Mounting – Eliminates the need for belt drives and sprockets Self Powered – Eliminates the need to run power to tach generation in many applications Signal Amplifier Available – Amplifier available for low speed or high resolution applications Adjustable Time Base – Allows direct readout in units of customers choosing www.hecogear.com
Electronics – Application Ideas RPM Measurement RPM Control and Feedback Product Counting with Data Acquisition Acceleration and Deceleration Ramp Control with Feedback Verification of Operation www.hecogear.com
Lubrication Instructions Unit must be filled with proper type and amount of lubrication before startup Fill to ½ capacity for horizontal operation Maximum oil temperature – 140 o F continuous, 170 o F intermittent Single Double RPM Out RPM Out AGMA 0-25 25-100 0-40 5 3 100-200 40-80 200+ 80+ 1 consult ISO 220 100 46 consult SAE 90 80W 75W consult www.hecogear.com
Sizing a Motor and Gear Reducer Determine: – Required Torque – Required Output Speed – Available System Pressure Example: – 33,000 in.lb. Output torque – 40 RPM output – 2,500 PSI available www.hecogear.com
Sizing a Motor and Gear Reducer Calculate Total Displacement – Total Displacement = (torque * 2 pi) / pressure – Total Displacement = (33,000 * 6.28) / 2500 – Total Displacement = 82.9 in3/Rev.
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Sizing a Motor and Gear Reducer Calculate Flow Required – Flow = (In3/Rev * Rev/Min) / In3/Gal – Flow = (82.9 * 40) / 231 – Flow = 14.35 Gal Theoretical – Assume 85% Volumetric Efficiency 14.35 / .85 = 16.88 Gal www.hecogear.com
Sizing a Motor and Gear Reducer Select Motor – Total Displacement / Gear Ratio = Motor Displacement – 82.9 / 4.8 = 17.27 in3/Rev – 82.9 / 6 = 13.82 in3/Rev – 82.9 / 24.96 = 3.32 in3/Rev – 82.9 / 31.2 = 2.66 in3/Rev www.hecogear.com
Sizing a Motor and Gear Reducer Select Motor – Assume 90% mechanical efficiency of the motor and gear box combination and the displacements would become: – 17.27 = 19.2
– 13.82 = 15.35
– 3.32 = 3.69
– 2.66 = 2.95
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Sizing a Motor and Gear Reducer Single or Double Reduction – 40 RPM * 24.98:1 or 31.2:1 would result in motor speeds at or in excess of 1,000 RPM – beyond the range of most LSHT motors and at the low efficiency end of the high speed motor range.
– 40 RPM * 4.8:1 or 6:1 would require motor speeds of 240 RPM and 192 RPM respectively which is in the best operating range of most LSHT Gerotor type motors www.hecogear.com
Sizing a Motor and Gear Reducer Sizing Summary – Select a Model 20 Single Reduction – with a 6:1 Ratio – and use a 19 in3/Rev (approx.) LSHT motor – that is rated for 17 GPM – and 2500 PSI.
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Competition Auburn www.hecogear.com
Competition Fairfield www.hecogear.com
Heco Product Differentiation Continuous Torque Rating Ductile Iron Castings High Pressure Case Seals Removable Seal Carrier Planet Bearing Design Shaft Bearing Design www.hecogear.com
Bearing Pre-Load www.hecogear.com
Heco’s Hydraulic Torque Wrench www.hecogear.com
Bearing Pre-Load vs. Bearing Life www.hecogear.com
Planet Bearing www.hecogear.com
Installation Drawings www.hecogear.com
Installation Drawings www.hecogear.com
Heco Packaged Drives Custom Power Unit Sized for Your Application Requirement Design Specifications, Pricing Configurator, and Installation Drawings Online 2-4 Week Lead-time for Standard Configuration www.hecogear.com
Heco Success Factors Distribution Background – Understand, Respect, and Support the Value Distributors Provide Priced for High Distributor Margins Customer Application Focus Solution Oriented – Customized Products Inventory Investment – Keep Lead-times Short Responsive – Production Flexibility for Quick Shipments Technology – Web Site Self-Service Tools www.hecogear.com
Web Site – www.hecogear.com
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