Product-catalog_2012

Helical-worm gear units GFC Product Catalog 2012 / 85 3 Installation guidelines Attachable worm gearboxes are to be axially attached on the work machine shaft. The exertion of force with an elastic socket dampens torqueimpactsandpreventstensionintheactuator.Alwaysconsider thatthisleadstoshiftingofshaftsbetweentheforcemachineandthe worm shaft. It is recommended to flange the force machines to the attachable gearbox or use jointed shafts. Size D lo l2 50 25;30 122 54 63 30;35 127 52 80 40;45 156 60 100 50; 60 188 80 125 60; 70 220 90 160 70; 80 245 90 250 115 322 120 Measurements in mm Following a longer period of use, attachable gearboxes can be dif- ficult to pull off (due to weather-related or ambient influences and frictional corrosion). To make this process easier, we recommend the designation of a drill hole in the shaft end of the work machine prior to assembly (see illustration above). Through this drill hole, if necessary (following the connection of an injector or a pump), one should be able to apply rust remover to the wheel-body cen- tre position. This requires the crosswise drill hole to open out into the area of the inside thread of the hollow shaft. To avoid tribo- corrosion, it is recommended to treat the work-machine shaft with a MoS2 surface-protector. Mounting and assembly of attachable gearbox/gearbox motors 5,0 D H7 k6 . . . l0 l2 10 connecting shaft for driven machine torque converter bearing driven machine spline for circlip in accordance with DIN 472 n2 900 T z Fm Fr TR Fs 180 0 225 0 270 0 60 0 120 0 150 0 210 0 240 0 3000 315 0 Application guideline for the attachment of torque supports In attachable gearbox motors/gearboxes and torque supports, exterior forces are exerted on the work machine shaft. The force- exertion point and the direction of the action of the exterior force depend on the position of the torque support and on the direction of rotation. The torque support must be designated for attach- ment on the work-machine side of the gearbox motor/gearbox. This minimizes the bending wear on the work machine shaft due to exterior forces. The mounting bolt for the torque support must be positioned on both sides. Forces exerted: Fm = force from the mass Fs = force exerted on the torque-support mounting bolts Fr = exterior force exerted on the work machine shaft z = lever length for the torque support n2 = rotation speed of the hollow shaft T = output-drive torques TR = reaction torque on the gearbox housing The output-drive torque equals the reaction torque; however, in the opposite direction. The appropriate selection of the force-exer- tion point and the direction of the action of the exterior force can achieve (along with the force from the gearbox mass) a reduction in the exterior force exerted upon the work machine shaft. flexible bushing Arrangement of torque converter bearing Possible mounting for torque converter bearing Size 60° 90° 120° 135° 150° 180° 210° 225° 240° 270° 300° 315° 330° 50 r r r r r 63 r r r r r r r r r 80 r r r r r r r r r 100 r r r r r r r r 125 r r r r r 160 r r r r r 250 r r r r r r r r r r Lagerung der Drehmoment-