1、- MIL-A-23b22 16 7797706 O192b62 L MIL=A-23622(WEP) IS APRIL 19-63 MILITARY SPECIFICATION ACTUATOR, AIRCRAFT, ELECTRO-MECHANICAL, LINEAR, DIRECT CURRENT This ipecification has been approved by the Bureau of Naval Weapons, Department of the Navy. 1. SCOPE 1.1 ScoDe - This specification defines the re
2、quirements for the deiign and teiting of linear electro-mechanical actuators which are electrically reversible and mechanically irreveriible with adjustable limit switches, operable from a volt direct current system. 1.2 Classif icatipa - The actuators covered by this speci- fication shall be classi
3、fied brthe applicable dash number apecified on Military Standard MS18037. 2. APPLICABLE DOCUYLENTS 2.1 Tho following document8 of the issue In effect on date of invitation for bids shall form a part of this document to the extent specified herein: SPECIFICATION8 Q9-P-416 Plating, Cadiuai (Electro de
4、porited) YIL-P-116 Proservation; methods of YIL-W-5088 Wiring, Aircraft, inatallation of MIL-E-5272 Pnvirorunankl Tosting, Aeronautical and A8801iat.d Equipment, goneral ipecificcr- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_- I MIL-A-i3622 Lb
5、9737906 OL72bb3 3 MI L-A-23622 MIL-C-5541 MI L-B - 56 2 9 MIL-1-6181 MIL-S-6743 MI L-E-7080 MIL-S-7742 MIL-P-7936 MI IA-8 5 16 MIL-M-8609 MI L-A -8 8 6 O MIL-N-25027 MIL-D-70327 STANDARDS Mi 1 i tar y MIL-STD-129 MIL-STD-130 Chemical Films for Aluminum and Aluminum Alloys Interference Control Requir
6、ements, Air- craft Equipment Switches, Pushbutton and Limit Electric Equipment, Piloted Aircraft Installation and Selection of, general specification for Screw Threads, Standard, Optimum Selected Series, general specification for Parts and Equipment, Aeronautical, pre- paration for delivery Sealing
7、,Compound, Synthetic Rubber, Electric Connectors and Electric System, Accelerator required Motors, Direct Current, 28 Volt System, Aircraft Class A and B, general speci- fication for Airplane Strength and Rigidity, general specifications for Nut, Self-Locking, 250 deg F., 500 de; F., and 800 deg F.
8、Drawings, Engineering and qleociated Lists Marking for Shipment and Storage Identification Marking of U. S. Military Property Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-23622 I6 9777706 01726611 5 W MI L-A-23622 MIL-STD-143 Specifications
9、and Standards,. Order of Precedence MIL-STD-195 Mw-king of Connections for Electric Assiembl les MIL-STD-704 Electric Power, Aircraft, Characteristics and Utilization of ME318037 Actuator , Aircraft ,. Electro-Mechanical , Linear , Direct Current MS20995 Wire, Lock MS33540 Safety Wiring, general pra
10、ctices for M533547 Pins, Spring, Functional limitations of -33586 Metal, Definition of Dissimilar (When requeating any of the applicable documents refer to both title and number. Copies of this specification and applicable documents may be obtained upon application to the Commanding Officer, Naval S
11、upply Depot, 5801 Tabor Avenue, Philadelphia 20, Pennsylvania, Code QCI.) 2.2 - NAS 561 Pins - Spring, Slotted and Coiled, Heavy htY NAS 669 Ring - Internal, Retainer NA8 670 Ring - External, Retainer w18 1183 Locking Device, Postive Index Copies of NA8 publications may be obtained from the National
12、 Aircraft Standard8 Committee, Aerospace Industrie8 A8eociatS on of America, Inc. 610 Shoreham Building, Waarh4ngton a;,D? C. 3. REQUIREMENT8 3.1 - The actuator8 furni8h.d undmr thi8 specification rhall be a product rhfch ha8 boon teated and has paised the qualification wit 8peOifisd herein. 7 fl c
13、2- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI L-A -2.3622 3.2 Material - 3.2.1 Metalg - All metal parts, other than current carrying parts, shall be of corrosion resistant material, or shall be suitably plated to resist corrosion, 3.2.1.1 Dis
14、similar meta la - The use of dissimilar metals in direct contact with each other, which tend toward active electrolytic corrosion (particularly brass, copper, or steel in contact with aluminum or aluminum alloy), shall not be acceptable. spraying of diesimilar base metals to provide similar or suita
15、ble abut- ting surfaces shall be permitted. by suitable non-metallic insulating material shall be permitted. Dis- similar metals are defined in Standard MS33586. used in the actuator. Metal plating or metal The use of dissimilar metals separated Magnesium shall not be 3.2.2 Non-metallic material - N
16、on-metallic material when used shall be flame resistant and shall not support combustion. 3.2.3 Selection of materiala - Specifications and standards for all materials, parts, and Government certification and approval of processes and equipment, which are not specifically designated herein and which
17、 are necessary for the execution of this specification, shall be selected in accordance with Standard MIL-STD-143 except as provided in paragraph 3.2.3.1. 3.2.3.1 Standard Darts - Standard parte shall be used whenever they are suitable for the purpose, and shall be identified on the drawing by their
18、 part number. Any standard part, of the same part number, shall be readily interchangeable as applied within the unit. parts such as screps, bolts, nuts, cotter pins etc. may be used provided they possess suitable properties and are replaceable by the 19ilitary standard part numbers referenced in th
19、e parts list, and if practical on the contractors drawings. In the event there is no suitable military standard part in effect on date of invitation for bids, equivalent:scom- mercial parts may be used provided they conform to all requirements of this specification. Commercial utility 3.4 h8iKq - 3.
20、4.1 ShDliCitV of delpn - The actuator shall be of the simpleat poseible design for the proposed uao. Simplicity of design resulting from use of the ame part for as many applications as possible is highly desirable. Provided by IHSNot for ResaleNo reproduction or networking permitted without license
21、from IHS-,-,-MIL-A-23622 16 = 7777706 0372666 7 W MI L-A-23622 4.4.2 I nterchane: eab ii t .v - All parts having the same manu- facturers part number shall be directly and completely interchangeable with respect to Installation and performance. Changea in manqfacturers parts numbers shall be governe
22、d by the drawing number requirement8 of Specification MIL-D-70327. 3“4e3 Structwal st- - The actuator shall be structuraly desigried In general accordance with SpeciIication MIL-A-8860. Pertinent factors required for rigidity, fatigue life, static etrength, or column etrengtii aihall be applied to t
23、he mximurii operating load to determine the limit load of the member under consideration. 3.4.4 - S- - Conat.ructioi shall be euch as to aocommodate to the greatest poaeiible extent, disaeoembly, reassembly, service maintenance and inspeo$ion by 1iia8ns of thorie tools and items of maintenance equip
24、ment which are nwinally available as commercial sitandard. Designe requiring specially dwigned iterm of maintenance toole and equip- ment shall be avoided. The actuator shall be designed and constructed so that no parts will work loose in service. Pt shall be built to withstand the strains, jars, vi
25、brations, and other conditione incident to shipping, storage, installation, and service. The actuator shall bg constructed - so that adjuatntente aiid repairs can aauily be made by personnel of opera- ting units and overhaul bases. 3.4.5 JiGS as with minimum electrical stroke. The switches shall not
26、 be subjected to sdde loads. 3.4.12.4 Electrical connections - Electrical wiring, connectors, and connections shall conform to the requirements of Specifications MIL- W-5088, MIL-E-7080, and MIL-STD-195 as applicable. All leads shall be firmly clamped and potted. Sealing compound shall be in accorda
27、nce with MIL-S-8516. Wire sizes less than222 AWG ahaababl be Umed. 3.4.12.5 Electrical circuits - The actuators electrical circuit shall conform to the wiring diagram shown on the applicable Ms drawing. 3.4.13 Interference - Conducted and radiated radio frequency noise shall not exceed the limits sp
28、ecified in Specification MIL-1-6181. A filter shall be provided when specified on applicable MS drawing. 3.4.14 LoCkinp: of parts - All threaded parts shall be locked by safety wiring, by self-locking nuts conforming to Specification MIL-N- 25027, cotter pins, or other approved methods. base and mot
29、or shall be drilled for safety wire. Safety wire shall be installed in accordance with Standard M833540 and ahall conform to Standard MS20885. Use of lockwashers or staking is not permitted. Mounting screws for motor 3.4.15 Weight - The maximum allowable weight of the actuator shall be as shown on t
30、he applicable B(s drawbmg. 3.4.16 Screw threads - Screw threads shall conform to the requirements of Specification MIL-S-7742. 3.5 Construction - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-23622 16 77777Ob O172bb7 4 MI -23622 3.5.1 Housing
31、 - The actuator shall be adequately protected by a suitable housing. Housings shall be substantial to withstand handling and shall be designed for easy access to the intrnal actuator components, Housing shall not exceed the asximum dimensions shown on the applicableMS drawing. 3.5.2 Finish - Externa
32、l aluminum surfaces shall be prepared for painting in accordance with the requirements of Specification MIL-C- 5541. External stbel surfaces shall be prepared for painting in accord- ance with the requirements of Specification QQ-P-416, Class 2, Type II. 3.5.3 Retaining rings - Use of retaining (sna
33、p) rings is not desired, However, when necessary, they shall be used in accordance with Standard NAS 669 and NAS 670. They shall not be used where loss of the ring will adversely affect the operation of the actuator. 3.5.4 Spring pins - Use of spring (roll) pins is not desired. However, when necessa
34、ry, NAS 561 pins shall be used and they shall be installed in a manner which will preclude any possibility of dtsengagement. Refer to Standard MS33547 for limitations on usage. 3.6 Performance - 3.6.1 Design considerations - The actuator shall be capable Of 10,000 full stroke cycles. 3.6.2 Rated dut
35、y cycle - Under long stroke cycling conditions with any adverse combination of maximum operating load and electrical and environmental pammeters specified at standard conditions, the sctuat6rs shall be capable of meeting Che requirements shown on the applicable MS drawing for continuous duty. 3.6.3
36、Operational environment - The actuator shall be capable of satisfactory operation under any of the following conditions; and pertinent combinations thereof (a) Temperature - Temperatures ranging from -54OC to +03W (b) Humidity - Relative humidity up to 100 percent (c) Altitude - Altitudes ranging,:,
37、from sea level to 50,000 feet (d) Vibration -legibly showing the internal wiring shall be firmly attached to the actuator. 3.7.3 Motor data - Data pertaining to the motor which is included on the motor need not be duplicated on the actuator nameplate. 3.7.4 Lubrication data - If lubrication of the a
38、ctuator is required during its normal service life, the lubrication requirements shall be included on the nameplate, unless too extensive. In such case, they shall be shown on a separately attached plate, or reference shall be made to the applicable technical order publications. 3.8 Reliability - Th
39、e actuator shall be designed for 10,000 full stroke cycles without failure or replacement of parts, at the rated load, duty cycle, and at maximum altitude and standard temperature. Load shall average not less than the rated load, whether or not i accuracy of dimensions and marking of parts and assem
40、blies; the alignment of parts and tightness of assembly screws and bolts. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responeibilitv for inspection - Unless otherwise speci- fled in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified hi
41、sein. Except , -a- - t-7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI -23622 as otherwise specified, the supplier may utilize his own facilities or any commercial laboratory acceptable to the fiavernment. The Government reserves the right to pe
42、rform any of the inspections set forth in the specification where such inspections are deemed necessary to assure sup- plies and services conform to prescribed requirements. 4.2 Classification of tests - The inspection and testing of actuators shall be asfollows: (a) Qualification tests - Qualificat
43、ion tests are those tests performed on samples submitted as qualified products to determine that the item meets all the requirements of this specification. (b) Acceptance tests - Acceptance tests shall be per- formed on actuators which have been submitted under contract to determine conformance of t
44、he product with requirements set forth in the specifica- tion prior to acceptance. 4.3 Qualification tests - 4.3.1 Qualification test sample - The qualification test sample shall consist of3actuators upon which qualification is desired. The manu- facturer shall furnish all samples 4.3.2 Tests - The
45、qualification tests shall consist of all the tests of this specification as described under section on test methods (4.6). The tests shall be conducted on each of the three actuators in the sequence as shown in table I. 4.3.3 Electric motor tests - When electric motors are con- structed integrally i
46、nto the actuator, all environmental life tests con- duced on the assembled actuator are applicable to the motor also, addition, motor specification tests such as commutation, dielectric strength, brush life, locked rotor protection, etc., which are not included in the required actuator testing, shal
47、l be conducted on the motor, Somp4mprovision of duty cycle or other operating conditions may be necessary to permit de- termination of all necessary motor characteristics since the specific motor requirements must meet the actuator specification requirements as well as the motor Specification requir
48、ements. Procuring activity approval of the proposed test program shall be obtained prior to initiation of the testing. In Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-23622 3b 9977906 0392672 Li M IL -A -23 622 TABLE I QUALIFICATION TESTING
49、SEQUENCE Test Examination of product Monitored operational check Stall Force (Initial) Dimensional check Static limit load Vi brat ion Mechanical stops Acceleration Shock Combined Humidity Temperature - Altitude ; Fungus resistance Monitored operational check Salt spray Mo*- operational check Sand and dust Monitored operational check Reliability Monitored operational check Interference (Final) Dimensional check Explosion proo
