1.18 A vehicle brake shaft is shown in figure 1.9. The single lever attached at G is connected to a pull rod which exert

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1 18 A Vehicle Brake Shaft Is Shown In Figure 1 9 The Single Lever Attached At G Is Connected To A Pull Rod Which Exert 1 (118.72 KiB) Viewed 56 times

1.18 A vehicle brake shaft is shown in figure 1.9. The single lever attached at G is connected to a pull rod which exerts a force of 2 kN. 250 250 10.15 1.4 m 0,7m 0.15 m/ 2 KN 400 Fig 1.9 This lever is 400 mm long. The levers at F and H are con nected to the brakes via pull rods. These levers are 250 mm long. The brake shaft is mounted in bearings 2,4 m apart, with the levers F and H 150 mm from a bearing. All three levers are keyed to the shaft which is 'stepped so that the torsional deflections in sections A and B of the shaft are the same. Take o, = 60 MPa, I = 45 MPa, o, 60 MPa, and modulus of rigidity G = 80 GPa and design the shaft, levers and keyways. 165 mm (section B); 55 mm (section A); shaft 55 mm at C and D. Keys 2 off 16 X 10 30; 1 by 18 x 11 x 45)