7.2.1. Features of a design
|Fig. 7.3. Back suspension bracket: 1–amortizatorny racks of a back suspension bracket; 2, 6 – longitudinal levers of a back suspension bracket; 3, 5 – arms of fastening of a beam of a back suspension bracket to a body; 4–beam of a back suspension bracket
Back suspension bracket (fig. 7.3)
semi-independent, lever and spring with the longitudinal levers sharnirno fixed on a body of the car and connected among themselves by a cross-section beam of U-shaped section.
The beam 4 back suspension brackets consists of two longitudinal levers 2 and 6 and a connector which are welded among themselves through amplifiers. In a back part arms are welded on levers of a suspension bracket with eyes for fastening of shock-absorbers, and also flanges to which pins of back wheels together with boards of brake mechanisms are attached. Ahead plugs in which are pressed сайлентблоки are welded on levers of a suspension bracket.
Through сайлентблоки pass the bolts connecting levers of a suspension bracket to stamped and welded arms of 3 and 5, attached to the basis of a body by bolts.
In a beam of a suspension bracket the stabilizer of cross-section stability of torsionny type is established.
Basic element of a back suspension bracket is the telescopic amortizatorny rack combining functions of the podressorivayushchy mechanism and a dempfiruyushchy element of vertical fluctuations of a wheel concerning a body. On an amortizatorny rack are collected...
|Fig. 7.4. Amortizatorny rack of a back suspension bracket: 1–the bottom pillow of fastening of an amortizatorny rack to a body; 2–compression buffer; 3–protective cover; 4–spring; 5–telescopic shock-absorber
... the bottom pillow of 1 fastening of a rack to a body through which load of a car body is transferred...
... the buffer of compression 2 assembled with a protective rubber cover 3.
Dempfiruyushchim serves as an element of a rack the telescopic shock-absorber of double action.
The bottom ends of amortizatorny racks are fixed by bolts on levers of a beam of a back suspension bracket.
The top ends of amortizatorny racks are attached to a body through rubber pillows.
Naves of back wheels are established on dvukhryadny ball bearings.