GME L-9A-13-1987 Elasticity (Backlash) of Rack and Pinion Steering Gear.pdf

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1、GME -TEST PROCEDURE NO. G9A-13 Ausgabedatum /date of issue 15 FE 87 Seite/page 1 von 3 TEST : Elastizitat Zahnstangenlenkgetriebe VERSUCHSZWECK : Bestimmung der Elastizitat des Lenkgetriebes AUSRSTUNG : 1. Drehmoment-?eeinrichtung fr Ritzelmoment mit tibertragungselement fr Lenkwinke1 2. In dukt ive

2、r-Winlce lg e b er 3. Lenkwinkelmegert 4. X-Y-Schreiber 5. Meverstarker 6. Haltevorrichtung fr Lenkgetriebe 7. Vorrichtung zum Blockieren der Zahnstange am Spurstangenanschlu TESTVERFAHREN : 1. Lenkgetriebe nach Zeichnungsvorschrift ein- stellen 2. Lenkgetriebe in Haltevorrichtung starr ein- spannen

3、 und Yekette (Drehmoment-Meeinrichtung, ind. Winkelgeber, usw.) anschlieen. 3. Zahnstange in Geradeausstellung bringen und in geeigneter Weise blockieren: - bei Mittenabtriebslenkungen am Mittenabtrieb ohne Spurstangen - bei Auenabtrieb direkt am Anschlu Spurstan- - -. gen an Zahnstange ohne Spursta

4、ngen 4. Melenkrad aus der Mitte langsam nach rechts bis zu einem Lenkmoment von 20 Nm belasten, langsam zurckdrehen bis zum Linkseinschlag mit ebenfalls 20 Nm Lenkmoment und von dort zurck bis Melenkr ad hiit t e 1s te llung . 5. Vorgang unter 4. je zweimal wiederholen ANFORDERUNG : Die gemessenen L

5、enkmoment-Lenkwinkel-Kurven drfen nicht auerhalb der in der Zeichnung angegebenen Grenzkurven liegen. -2- GME -TEST PROCEDURE NO. G9A-13 Ausgabedatum /date of issue 15 FE 87 Seite / page 2 von 3 / - MESSAUFBAU A Vers trker Systembild Sinnalf luDlan X- Y- Schreiber f ,/- Eingang X-Achse .Eingang Y-Ac

6、hse u . GME -TEST PROCEDURE NO. L - 9 A - 13 Y, . Ausgabedatum /date of issue 1 5 FE 87 Seite/page 1 TEST : 1 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 3 3.1 3.2 ELASTICITY (BACKLASH) OF RACK AND PINION STEERING GEAR Purpose To determine the steering gear elasticity (backlash) Equipment Torque measuring device

7、for pinion torque including angle measuring device for steering angle Inductive angle sensor Steering angle measuring device X-Y recorder Test amplifier Fixture to hold steering gear Device to block the rack at the lie rod end Proce dure Adjust steering gear to drawing specification Rigidly clamp st

8、eering gear in the fixture and connect instrumentation (torque measuring device, inductive angle sensor, etc.) Opel. Form 66484-1 GME -TEST PROCEDURE NO.L - 9 A - 13 Ausgabedaturn /date of issue 1 5 FE 87 Seitelpage 2 3.3 3.4 3.5 4 Adjust rack to straight-ahead position and block by suitable means:

9、 for center take off steering systems at center take- - for end take-off steering systems directly at the tie off without tie rods rod end without tie rods Slowly turn measuring steering wheel from center po- sition to the right until a steering torque of 20 Nm is reached, slowly reverse until reaching 20 Nrn again and return to center position of measuring steering wheel Repeat paragraph 4 twice Requirements: The steering torque versus steering angle curves must not exceed the limits specified on the drawing. Opel. Form 66484-1

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