DE1618808U - DEVICE FOR ALIGNING CRANKSHAFT. - Google Patents

Description

OKbHlUS

■.:,. .- B ^- e. s e'h friction of the device for aligning V ₁ .ν "■ '■;.' ■ crankshafts assembled with a press fit, in particular; v'wellen "(s ·; on this 2chng, I) · '

'. .- werwerden For be repaired roller-mounted crankshafts -tysid-e, Eurbelwangeri -1 from ^ crank pin 2 is disconnected by switching • 'eina-nde © press and * after crank pin 2 reground "outside, connecting rod bearing 3 grinded inside and Übennaßrolien 4 inserted zusamaöngepreßt again "Since the press fit points of both crank webs 1 and the Kuj?" beiapf ena £ zylindriseh. ~ smooth and not grooved, it is not possible, already when pressing three parts together, to bring both main bearing journals into alignment} rather ¹ , their center lines are around the && ö "2e" - measured at the distance " r "from, center of yoke pin 2 - offset from one another (shown exaggerated in the drawings!).

. This "blow" must 1.) be determined according to this

2) to be eliminated

1.) i rii t t e 1 t will oer sag, as below (see drawing I):

The crankshaft is in the centering bores of the main bearing journals 5 tips between the grains 6 of an inrun tester Two dial gauges 7 are attached in such a way that their load pins reach the main bearing journal & n 5 touch, but as close as possible to the iurbeIwangen 1, When turning the crankshaft int the dog running test device every dial gauge shows its stroke of about that »■! Ate" 2e ".

2.) The ochlag determined in this way is usually eliminated in the following way:

Crankshaft is taken out of your concentricity tester « Under a straightening press or by hammering will be on the points. "P" a pressure exerted until the iCurbeIwangen 1 do the axis of the crank pin 2 itself have turned against each other so far that the stroke is the same imil_gewordeii, i.e. that the center lines of both crank pins 5 align · Experience has shown that the perfect inspection result requires the crankshaft to be checked is clamped in the concentricity tester and taken out again for the purpose of clearing, namely abviechr selnö several times, aa checked after each straightening attempt must be whether the achieved rotation of the crank webs 1 was sufficient or had turned out too large, by the tiaupt bearing pin en 5 to align,

The device shown on iichng.Xl for aligning compressed Crankshafts simplify alignment in the following way;

The crankshaft clamped in the Kundlaufρruf device is turned "" * ", with the dial gauges 7 showing the runout of the main bearing journals 5. The pointer deflection shows in which direction the two crank webs 1 are to be turned against each other the two crank webs 1 set that of one of the two - crosswise standing Kichtbalken 8 the one - provided with adjusting screw 1Ü - Baikenende on one of the two crank ware 1, namely the adjusting screw there, where the Kurbelaapr - .fen 2 is The other end of the beam lies on the other side of the two ^ c / rbU ^^ H ^ eui 4, 4er Aaflaqtjourikt

Claims (5)

Böj41.ü66 * -8,1t, 5fi, · ■ as far away as possible from the. Crank pin · 2U About second; or both - on the other side of the light device. ** - Bar 8 is placed on the other hand on the two crank webs 1 after the same consideration. "One of the" two ^ nuts 9. Is loosely tightened so that the oil device is stuck in this position on the crankshaft. "\ The crankshaft with the device attached to it v / is rotated in the concentricity of the tester until the pointer of the. Dial gauges T show the greatest deflection. In this position one of the two nuts 9 is sucked; the straightening bars press crosswise on the baskets Iwangen 1 - and practice, since the pairs of forces in one - on Eehng. II apparent - distance "a" act »on the two crank webs 1 a torque, whereby both JfQrbelwangen 1 turn around hay crank pin 2 as a pivot point against each other · The nuts S are however tightened until the dial gauges the" zero "- Show N position, that is, until the crank pins 5 are in alignment and so run without contact with the sole. The zero position on the dial gauge 62i2; ifferblatt is determined beforehand when turning the crankshaft in the Kundlauf tester, and represents the purict that results when the distance that the pointer describes on your dial gauge dial is halved. 5 c h u t ζ an a ρ r u ch »While usually zam. Alignment of the crankshafts assembled with an Ireß seat, they are taken out of the test device, aligned under a press or by hammer blows, which experience has shown requires alternating testing and alignment, the mode of operation of the aligning device shown in drawing II is dad u. R eh . marked. d ag 1.) ^; the crankshaft for the calibration process out of the concentricity check device -n I ₁ Ch t to be removed - *. needs, " . 2 ·) the rectifier - to align the two fiaupt-. bearing journals (5) - required prSiH & oment rieh t Ig g e m e ssen exerts on the two crank webs (1). For this purpose, the nut (9) for actuating the device is only tightened until the dial gauges - which are necessary to check run-out anyway - have reached the zero position, so that the device is only actuated once to. Bring the two main bearing journals (5) into alignment. . ' Osnabrück, November 8th, 50. ■. / f,