1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.Copyright 2004 SAE InternationalAll rights reserved. No part of this publication may be
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4、776-0790Email: custsvcsae.orgSAE WEB ADDRESS: http:/www.sae.orgAEROSPACE INFORMATION REPORTAIR1160REV.CIssued 1971-06Revised 1999-10Reaffirmed 2004-03Superseding AIR1160BAircraft Engine and Accessory Drives and Flange StandardsFOREWORDChanges in this revision are format/editorial only.1. SCOPE:This
5、 document defines features that require interface definitions between aircraft engines and accessory drives and flanges and summarizes various aerospace standard dimensional performance data.1.1 Purpose of Standard:To provide the means by which both engine manufacturers and accessory manufacturers m
6、ay save appreciable design and development time by utilizing the collective and coordinated efforts and the past experience of the industry in solving the problems of tolerances and performance capability.2. REFERENCES:AS959 Drive - Studded, Accessory, 2.653 BC Square, Design Standard forAS960 Flang
7、e - Accessory, 2.653 BC Square, Design Standard forAS961 Drive - Studded, Accessory, 5.000 BC Square, Design Standard forAS962 Flange - Accessory, 5.000 BC Square, Design Standard forAS963 Drive - Studded, Accessory, (127) 5.000 BC Round, Design Standard forAS964 Flange - Accessory, 5.000 BC Round,
8、Design Standard forAS965 Drive - Studded, Accessory, (203.2) 8.000 BC Round, Design Standard forAS966 Flange - Accessory, 8.000 BC Round, Design Standard forAS967 Drive - Studded, Accessory, (254) 10.000 BC Round, Design Standard forAS968 Flange - Accessory, 10.000 BC Round, Design Standard forAS969
9、 Drive - Accessory, (127) 8.000 BC Round, QAD, Design Standard forAS970 Drive - Accessory, (203.2) 8.000 BC Round, QAD, Design Standard forAS971 Drive - Accessory, (254) 10.000 BC Round, QAD, Design Standard forAS972 Spline Details, Accessory Drives and FlangesSAE AIR1160 Revision C- 2 -3. To assure
10、 by simple identification designation, design compatibility between engine pads and drives and accessory flanges and drive shafts.The following is a brief description of all pertinent parts of a “Standard“. It may be used as a check list to determine that a given design conforms in all respects to
11、a given “Standard“.1. ENGINE OR GEARBOX DRIVE PAD - NON-QAD TYPE: (AS959, AS961, AS963, AS965, AS967)1.1 Minimum diameter or perimeter of machined surface.1.2 Minimum clearance requirements surrounding pad.1.3 Basic bolt circle diameter.1.4 Number of studs.1.5 Basic angular location of studs, spacin
12、g and tolerance thereof.1.6 Stud height and minimum full thread.1.7 Pilot diameter, chamfer of pilot entrance, pilot cavity depth and width.1.8 Minimum distance between pad face and drive shaft boss.1.9 Distance from pad face to end of drive shaft.1.10 Direction of rotation of drive shaft.1.11 Surfa
13、ce finish requirements as well as minimum radii at intersecting surfaces.1.12 Squareness and concentricity requirements of drive shaft to pad and pilot diameter.1.13 Spline lubrication is specified.1.14 Limit of oil leakage out of drive is specified.1.15 Drive cavity drain.2. ENGINE OR GEARBOX DRIVE
14、 PAD - QAD TYPE: (AS969, AS970, AS971)Same as (1) above, except:2.1 Clearance requirement surrounding pad is increased to accommodate “Vee“ band.2.2 Details of “Vee“ band shoulder at O.D. of pad.2.3 Use of dowel pin may be specified in lieu of studs to accept torque reaction from accessory.2.4 Basic
15、 angular location of pin and stud(s).2.5 Detail dimensions of pin and stud(s).3. ACCESSORY FLANGE: (AS960, AS962, AS964, AS966, AS968)3.1 Maximum flange diameter or perimeter.3.2 Basic location and dimension of stud holes.3.3 Use of dowel pin may be specified in lieu of studs to accept torque reacti
16、on from accessory.3.4 Basic dimensions for keyhole slots including dimensions of recess on back side of flange, where applicable.SAE AIR1160 Revision C- 3 -3. (Continued):3.5 For starter applications direction of slots to oppose torque developed by accessory.3.6 Distance from flange to end of drive
17、shaft.3.7 Wrench clearance requirements.3.8 Minimum stud and nut clearance requirements.3.9 Pilot dimension and concentricity requirements.3.10 Pilot inner and outer depth dimensions.3.11 Pilot “O“ ring groove dimensions, where applicable.3.12 “Vee“ clamp shoulder at O.D. of flange, complete dimensi
18、ons.3.13 Surface finish requirements as well as minimum radii at all intersection surfaces.3.14 Misalignment requirement for drive shaft.3.15 Retention requirements for drive shaft.3.16 Requirement for operation when exposed to oil leakage into pilot compartment.3.17 Drive cavity drain.4. DRIVE OUTP
19、UT SHAFT: (AS972)4.1 Shaft and Sealing Design Details4.1.1 Complete dimensions of “O“ ring cavity.4.2.2 Surface finish requirements.4.1.3 Depth of shaft cavity.4.1.4 Radii at intersecting surfaces.4.1.5 Concentricity limits of “O“ ring cavity entrance chamfer.4.1.6 Concentricity limits of “O“ ring c
20、avity bore and spline P.D.4.2 Spline Design Details4.2.1 Complete dimensions of spline.4.2.2 Minimum length of spline.4.2.3 Minimum surface hardness.5. ACCESSORY DRIVE SHAFT: (AS972)5.1 Shaft and Sealing Design Details5.1.1 Shaft outside diameter.5.1.2 “O“ ring groove dimensions and location.5.1.3 C
21、oncentricity limits of shaft O.D. and spline P.D.5.1.4 Concentricity limit of “O“ ring bottom and shaft O.D.5.1.5 Radii at intersecting surfaces.5.1.6 Surface finish requirements.5.1.7 Limitation to location of shear section is specified.SAE AIR1160 Revision C- 4 -3. (Continued):5.1.8 In designing t
22、he drive and the accessory, consideration should be given to the possibility of full lubricating system oil pressure occurring within the gearbox spline inner cavity.5.2 Spline Design Details5.2.1 Complete dimensions of splines.5.2.2 Minimum length of spline.5.2.3 Spline leading edge chamfer.5.2.4 C
23、hamfer at spline run out end.5.2.5 Surface hardness.6. ENGINE OR GEARBOX DRIVE PAD LOADS: Pad overhung moment limit about the centerline of the pad stud pattern should be based, as a minimum, on the accessory weight, overhung moment, and operating environment as specified in the engine model specifi
24、cation or by the procuring agency.7. SPLINE TORQUE CAPACITY: The selection of the spline size should be based, as a minimum, on the accessory power and speed requirements as specified in the engine model specification or by the procuring agency. Standard stress analysis procedures should be followed
25、 to determine the allowable load carrying capacity limits. The engine shaft and spline, except when a starter is to be used, should be capable of withstanding an instantaneous torque five times the rated torque without permanent deformation or failure. When a starter is to be used, the engine shaft
26、and spline should be capable of withstanding an instantaneous torque two times the maximum starting torque without permanent deformation or failure.8. TYPICAL ACCESSORY DRIVE APPLICATIONS: The tabulation starting on page 5 provides listing of typical drive applications and is provided only as a refe
27、rence to current practice.9. NOMINAL USES:CS Constant Speed Generating SystemFP Fluid Power PumpG Narrow Speed Range GeneratorSStareSP Starter-GeneratorTG Tachometer GeneratorVS Variable SpeedPREPARED UNDER THE JURISDICTION OFSAE COMMITTEE AE-1, ENGINE ACCESSORY INSTALLATIONSSAE AIR1160 Revision C- 5 -TABLE 1SAE AIR1160 Revision C- 6 -TABLE 1 (Continued)SAE AIR1160 Revision C- 7 -TABLE 1 (Continued)
