1、FINAL DRAFT CEN PREN2587 84 340q589 00L003b 9 M EUROPEAN STANDARD prEN 2587 NORME EUROPENNE EUROPISCHE NORM September 1989 UDC : 629.7.02 : 621.827.1 : 621.85.053.004.1 Key words : Aircraft industry, flight control, rod- ends, threaded ends, dimensions, static loads. English version Aerospace series
2、 Rod-ends, adjustable double fork and threaded shank Dimensions and loads Srie arospatiale Embouts rglables chape double et tige filete Dimensions et charges Luft- und Raumfahrt Einstellbare Doppelgabelkpfe mit Gewindeschaft Mae und Belastungen This draft European Standard has been drawn up by AECMA
3、 (Association Europenne des Constructeurs de Matriel Arospatial). It is submitted to CEN members for formal vote. If this draft becomes a European Standard, CEN members are bound to comply with the requirements of the CEN Internal Regulations which stipulate the conditions for giving this European S
4、tandard the statusof a national standard without any alteration. This draft European Standard was establishedby CEN in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to
5、 CEN Central Secretariat has the same status as the official versions. CEN members are the national standards .organizations of.Austria,. Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingd
6、om. -. , CEN: European Committee for Standardization Comit Europen de Normalisation Europaisches Komitee fr Normung Central Secretariat : Rue Brderode 2, B-1000 Bruxelles 0 GEN Copyright reserved to all CEN members Ref. Nr prEN 2587 : 1989 E CEN PREN257 7 m 3qOL1589 0010037 O W prEN 2587 Page 2 Brie
7、f history This draft European Standard has been prepared bythe European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this draft has successively received the approval of the National Associations and the Offic
8、ial Services of the member countries of AECMA, prior to its presentation to C.E.N. CEN PREN2587 89 W 3q04587 ORLO038 2 W prEN 2587 Page 3 1 Scope and field of application This standard specifies the characteristics of adjustable rod-ends consisting of a rod-end body with threaded shank consisting of
9、: - a double fork ; - a circumferential groove to identify location ; - an optional longitudinal groove for locking purposes, These rod-ends are intended for use with flight control rods or rods for aerospace structures. The cadmium plating restricts the application to temperature not exceeding 235
10、OC. 2 References IS0 3353 IS0 5855/1 IS0 5855/2 EN 2133 EN 2137 EN 2438 EN 2601 , / Aerospace construction - Rolled threads - Runout and lead threads Aerospace - MJ Threads - Part 1 : General requirements Aerospace - MJ Threads - Part 2 : Limit dimensions for bolts and nuts Cadmium plating of steejs
11、 with maximum specifiedtensile strength equal to or less than 1450 MPa, and copper and copper alloys - Aerospace series 11 Steel FE-PL75 - 1100 MPa G RmG 1250 MPa - Bars De 1 O0 mm - Aerospace series 11 Steel FE-PL62 - 900 MPa G R, G 1 1 O0 MPa - Bars De 40 mm - Aerospace series 1) Aerospace series
12、- Fork ends - Technical specificiation 2) _I -. . 3 Required characteristics 3.1 Dimensions - Tolerances Configuration : See figure. Dimensions and tolerances : See figure and table, values after cadmium plating. 3.2 Surface See figure, values before cadmiumplating. 3.3 Materials Steel EN 21 37 or E
13、N 2438. 1) Published as AECMA standard. 21 In preparation. CEN PREN2587 89 3q04589 0010039 L1 prEN 2587 Page 4 3.4 Surface treatment Cadmium plating, except on the bore C : EN 2133,7 to 20pm except thread 5 to 10pm 6- B s3- 3 3-5 3 A-A Y (5:l) I Groove = d3 min. (see IS0 5855/2 1 Radius R / -I lncom
14、plefc ihreod according to IS0 3353 I *I R 1 50.1 . NOTE : The circumferential groove and the longitudinal groove under distance M shall be painted red. Figure . -_ CEN PREN2587 89 m 3Li04589 OOLOOLiO O m prEN 2587 Page 5 v) al L c .- E e - .- E c .- i. Q P - 2 J f I Iy , - 3 c O CD a7 c E m 0- E .-
15、n E c U Y U O O t - - I CEN PREN2587 89 = 3qUq589 OOL004L 2 prEN 2587 Page 6 i ! ii 4 Designation Each adjustable double fork rod-endfitting shall only be designated as in the following example : F i Description block ROD-END Identity block EN2587WL TTI Number of EN standard W = size code (see table
16、) L = code for left hand thread with application of the following codes : 1 = left hand thread R = right hand thread NOTE : If necessary, the originator code 19005 may be introducedbetween the description block and identity block. 5 Marking In addition to the manufacturers own marking, each rod-end(see figure) and the package shall be marked, using the identity block specified in clause 4. .- 6 Technical specification Rod-ends supplied according to this standard shall conform with the requirements of .EN 2601. -
