Upload
victor-acuna
View
222
Download
0
Embed Size (px)
Citation preview
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 1/31
Kop Kop - - Flex Train ing Flex Train ing
Coupl ing Basics
Emerson Power Transmiss ion
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 2/31
EPT/ C o up ling s
2
CONTENTS
• Introduction, Terminology, Theory ofOperation– Gear
– Grid– Disc
– Elastomer
• Product Offering/Matrix
• Served Industries & Applications• Summary
KOP-FLEX, FASTS, KOP-GRID, MORSE, BROWNING AND MORFLEX ARE REGISTERED TRADEMARKS OF EMERSON POWER
TRANSMISSION MANUFACTURING, L.P.
© Emerson Power Transmission Manufacturing, L.P., 2001. ALL RIGHTS RESERVED
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 3/31
EPT/ C o up ling s
3
In t roduct ion
• Connect 2 Shafts
• Transmit power from Driving Shaft to Driven Shaft
• Accommodate Four Types of Misalignment:
– Angular, Offset or Parallel, Combination and Axial• Protects System
Coupling Function
Transmit PowerTransmit Power
Accommodate MisalignmentAccommodate Misalignment
Compensate forCompensate forEnd MovementEnd Movement
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 4/31
EPT/ C o up ling s
4
Introduct ion
MisalignmentTypes:• Angular
2. Offset or Parallel
3. Combination
4. Axial
What causes Misalignment:• Installation (human) Errors
• Thermal Growth
• Worn Bearings
• Dynamic Twist of Bases Under Load
• Settling Bases / Foundations
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 5/31
EPT/ C o up ling s
5
Introduct ion
3 Basic Categories (flexible shaft couplings)
• Mechanical ( Lubricated)
• Transmits torque through a lube film. Accommodatesmisalignment with rocking motion through gearing.
• Metallic (Non-lubricated)• Transmits torque through compression or tension of
metal. Accommodates misalignment through
deflection of metal.• Elastomer (Non-lubricated)
• Transmits torque through compression and/or shearof Elastomer. Accommodates misalignment throughdeflection of Elastomer.
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 6/31
EPT/ C o up ling s
6
Lubr icated Coup l ings
• Gear– Fasts
– Model B
– Walron– Series H
• Grid
• Miscellaneous
– Chain– Universal Joints
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 7/31
EPT/ C o up ling s
7
Lubr icated
• Advantages of Gear Couplings– Accommodates Large Misalignment including
most axial misalignment
– Very Economical
– High Torque Capacity (Torque to OD Ratio)
– High Torsional Stiffness
• Disadvantages of Gear Couplings– Regular Maintenance / Lubrication Required
EPT Gear Couplings
Fast’s® - Model B - Series H - Waldron
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 8/31
EPT/ C o up ling s
8
Terminology
• Flex Hubs – Attached to Shaft
• Sleeves – Slide over hub teeth (shrouded or exposedbolts)
• Accessories – bolts/nuts, gaskets and seal
• Rigid – Like a flex hub (seats on shaft) but doesn'taccommodate misalignment since it has no teeth
Full Flex Rig id
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 9/31
EPT/ C o up ling s
9
Basics
• Hubs have external (male) gear teeth
• Sleeves have internal (female) gear teeth
• Rigid has no teeth
*Sleeve teeth contact hub teeth one for one – unlike gearbox;power is transmitted from tooth to tooth thru lube
Sleeve Teeth
Hub Teeth
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 10/31
EPT/ C o up ling s
10
Basics
• Full Flex or Double Engagement - twoflexible halves bolted together - usedexclusively on 4 Bearing Systems
• Flex Rigid or Semi-Flex or SingleEngagement - one flexible half bolted to arigid half - used on 3 bearing Systems andfloating shafts.
(See page M-16)
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 11/31
EPT/ C o up ling s
11
• Mill Motor Type (Industry standard shaft end,dimensions, and details)
• Limited End Float
• Floating Shaft
• Electrically Insulated• Short, Medium and Long Slide (Utilize full length
teeth- compensate for thermal expansion)
• Shear Pin Overload Release Type
• Brake Wheel or Disc Types
• Double Engagement DE Type
• Vertical Adjustable VAR Type
• Cutout Disengaging
Other Types
Custom Designs Available for Unique ApplicationsCustom Designs Available for Unique Applications
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 12/31
EPT/ C o up ling s
12
Tapered Grid
– Can Replace Flex Element (Tapered Grid) Without Moving Hubs– Absorbs Medium Shock Loads
– Provides Some Torsional Damping– High Fatigue Life– Moderate Torque Capacity– Very Economical
T10 - T20 - T31 - T35•Advantages:
•Disadvantages:
– Maintenance / Lubrication Required Periodically– Torsionally Soft– Balanced Couplings are NOT Available– Typically Shorter Life than Gear Couplings– Not Suitable for Critical Applications
Types
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 13/31
EPT/ C o up ling s
13
Browning and Morse
Chain Type
Inexpensive … Browning DRC chain couplingsprovide long service life with the hardened
working members.
Universal Joints
Inexpensive … Browning Universal Joints
provide long service life withminimum maintenance.
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 14/31
EPT/ C o up ling s
14
Non-Lubr icated Coup l ings
• KD ® Disc Type
• Elastomer- Resilient Max-C- Elastomeric- Jaw
- Ever-Flex- Morflex
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 15/31
EPT/ C o up ling s
15
Disc - Theory of Operat ion
• Transmit Torque Through Flexible,Stainless Steel Disc Packs Instead of
Gear Teeth.• Compensate for Misalignment by
Deflection of Disc Packs Instead ofGear Teeth.
• No Wearing Parts - Flexing Insteadof Sliding
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 16/31
EPT/ C o up ling s
16
KD Disc Overview
• No Lubrication Required
• Unitized Disc Packs -
Ease of Assembly, FactoryAssembles Many Components
• Styles Available to Replace Gear
Type Couplings - Close Coupled,Spacer, Floating Shaft
4. High Torque Ratings
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 17/31
EPT/ C o up ling s
17
Terminology
• Disc - Stainless Steel Flexible Disc
> (.012” To .015” Thick)
• Disc Pack - Unitized Pack Made Up of Several
Discs• Link - The Disc Section Between Bolt Holes
• Scallop - Optimized Disc Profile, Thickest(Strongest) Near Bolt Holes
• Sizing Designations:– First 2 Digits is Size (For Example: size 204 =
2.0)
– Last Digit is Number of Bolts (204 = 4 Bolt Style)
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 18/31
EPT/ C o up ling s
18
Disc Coupl ings
• Advantages:– No Maintenance - No Lubrication
– Designed for Infinite Life– Good Inherent Balance
– Zero Backlash
• Disadvantages:
– Less Tolerant of Extreme Misalignment– Typically Larger Diameter Compared to Gear
– Less Axial Float Than Gear
Advantages/Disadvantages
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 19/31
EPT/ C o up ling s
19
Resi l ient Max -C
• Theory of Operation
– Transmit Torque ThroughResilient Blocks In
Compression– Compensate for Misalignment
by Deformation of Blocks
– Resilient Blocks Absorb Shock
and Dampen TorsionalVibration
– Fail-Safe, Interlocking BladeDesign
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 20/31
EPT/ C o up ling s
20
Max-C Types
Advantages• Non -Lubricated, Low Maintenance.
• Resilient Material in Compression, Not Shear.• Fail-Safe, Interlocking Blade Design.
• Replaceable Blocks Are the Only Wear Item.
Disadvantages• Large size compared to gear couplings
• Speed limitations due to size
K2, UB, CB and WB
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 21/31
EPT/ C o up ling s
21
Elas tomer ic Coup lings
Wrap around rubberElement
Aluminum HubsAccommodatesMisalignment
Provides TorsionalDamping
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 22/31
EPT/ C o up ling s
22
Elas tomer ic Coup l ings
Advantages:– Wrap-Around Element Can Be Replaced Without Moving
Equipment
– Non-Lubricated, Low Maintenance
– Pre-Compressed Rubber Element Always in Compression(Not in Shear – Like most competitors)
– Aluminum Hubs for Corrosion Resistance (Steel Hubs AreAvailable, and Inventoried in Sizes #40 - #60).
Disadvantages: - Torque Capacity is slightly Less than Grid, Jaw and Gear
Type Couplings
- Speed Limitations
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 23/31
EPT/ C o up ling s
23
Browning and Morse
Ever-Flex
Inserts Available: Buna-N (Standard), Hytrel,Urethane and BronzeInterchangeable With Lovejoy Type L,
Martin Type ML, and Maurey Type FC
Jaw Type
A rubber flex member permanently bondedto steel flanges. Minimum maintenancerequired, reduce Torsional vibrations.
Morflex
Specially developed, resilient, non-cold-flowneoprene biscuits are responsible for the
flexibility of the Morse Morflex Coupling.Great for Low hp Reciprocating Drives
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 24/31
EPT/ C o up ling s
24
Product Offer ing
St andard Product s
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 25/31
EPT/ C o up ling s
25
Eng ineered Product Offer ing
M i l l Product s
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 26/31
EPT/ C o up ling s
26
Engineered Produc t Offer ing
H igh Performance
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 27/31
EPT/ C o up ling s
27
Produc t Matrix
EngineeredEngineered
ProductsProducts
StandardStandard
ProductsProducts
High
Performance
Mill
Products
HP Gear HP Disc
Diaphragm
Gear, Grid
Chain
Elastomeric
Jaw, Disc
Universal Joint
Resilient
Gear Spindle
Large Gear
HiHi--MaintenanceMaintenance
LubricatedLubricated
LowLow--MaintenanceMaintenance
NonNon--LubricatedLubricated
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 28/31
EPT/ C o up ling s
28
Primary Served Indus tr ies
• Steel Mills
• Pulp & Paper Mills
• Petrochemical Plants
• Power Plants• Refineries
• Cement Mills
• Mines
• Rubber
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 29/31
EPT/ C o up ling s
29
Served Appl icat ions
• Steel Mills: Casters, Run-out/Entry Tables,Cranes, Edgers, Hot/Cold/Bar Rolling Mills,
Straighteners• Pulp & Paper: Barker, Calendars, Chippers,
Coaters, Couch/Press Rolls, Dryers, Jordans,Refiners and Rolling Mill Drives
• Cement Mill / Mines: Rotary Mills (Ball,Kiln, Hammer Drives), Crushers, Conveyors
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 30/31
EPT/ C o up ling s
30
Served Appl icat ions
• Petrochemical/Refinery/Power Plant/GasPipe Line: Pumps, Turbine to Compressor orGenerator Drives, Melt Pump, Cooling
Tower, Boiler Feed Pump• Others: Pumps, Conveyors, Fans, Feeders,
Marine Propulsion Drives, Cranes, Mines
Anywhere There is Driving to DrivenEquipment Shaft Connection
7/30/2019 Conceptos Básicos Acoplamientos
http://slidepdf.com/reader/full/conceptos-basicos-acoplamientos 31/31
EPT/ C o up ling s
31
Avai lable Resources
• Internet: www.emerson-ept.com
– Price, Availability, Order Entry
– Product Selections
– Smart Interchanges
– CAD Drawings
– eCatalog– Media Library
• EPT Customer Service (800-626-2120)
– Price, Availability, Order Entry
• Technical Services – Standard Product (800-626-2093)
- Standard / Mill / High Performance (410-768-2000)
– Technical Questions Regarding Products
– Application and Interchange Assistance