Погрузчики одноковшовые строительные, страница 3

                          В₁ = 3050/1,5=1910 мм.

8) Дорожный просвет (клиренс)

                                                                        ______

                          К = (0,85…1,15)(50+160*³√ Qн+4 ),мм.        (3.8)

       ______

                          К = 1,15(50+160*³√ 3,5+4 )=418 мм.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  

9) Координата Ц.Т. базовой машины (рис.1.7 [1])

                          Х_т = (0,6…0,7)А.                                             (3.9)

                          Х_т = 0,639*3050 =1950 мм.

10) Координаты центров тяжести

                             Х = А/1,8;                                                            (3.10)

                     Х =3050/1,8 = 1695 мм.

                      а_г = (0,6…0,95)А;                                                        (3.11)

                      а_г = 0,63*3050 = 1920 мм.

                               в_о = а_г/2.                                                     (3.12)

                       в_о= 1920/2 = 960 мм.

 11) Статические нагрузки на передний мост R_п и задний R_з порожнего погрузчика определяются, соответственно, по формулам (1.20) и (1.21) [1].

                    R_п = G_п*(1-(X/A)); кН                                        (3.13)

                   R_п = 88,5*(1-(1695/3050)) = 39,32 кН

                            R_з = G_п*(X/A): кН                                           (3.14)

                         R_з = 88,5*(1695/3050) = 49,18 кН

 Для нагруженной машины нагрузки, приходящиеся на передний мост R_пг и задний R_зг, определяются по формулам (1.23) и(1.24) [1].

                    R_пг = G_п*(1-Х/А)+ Qн(1+ а_г/А); кН.                    (3.15)

                    R_пг = 88,5*(1-1695/3050)+35*(1+1920/3050) = 89,56 кН.

                    R_зг = G_п*(Х/А)+ Qн(а_г/А); кН.                              (3.16)