Hydraulic drive of truck crane

Drawing of the hydraulic drive of a truck crane

- on boom                  lifting/lowering hydraulic cylinders Tc = 25·104 N;

- on the boom                                extension hydraulic cylinder Tvyd.s = 8·103 N;

- on the hydraulic cylinder of                        each outrigger Axes = 12·104 N;

- on the hydraulic motor of the platform                              rotation Mpov = 96 N·m;

2.2. Speed of movement of hydraulic cylinder pistons:

- boom                                                   lifting/lowering vc = 0.11 m/s;

- boom                                                               extension vD = 0.13 m/s;

- extension of the                                                                support support = 0.3 m/s.

2.3. Rotation speed: ωp platforms                                       = 410 s-1;

2.4. Working fluid grade: VMGZ in winter, MG-30 in summer.

2.5. Length of hydraulic lines:

-Suction                                                                                    lbc = 1.6 m;

-Pressure                                                                                           lh = 5 m;

- Workers (each line): lifting/lowering the                   boom lp. = 5.5 m;

 - boom                                                                        extension l.d = 8 m;  

 - Extension of the                                                                         support supports = 5.5 m;  

 - Turning the LPOV platform                                                                     . = 5 m;

 -Drain                                                                                             lsl = 10.5 m;

2.6. Local resistance coefficients:

- suction hydraulic line                                                              ξbc = 1.2;

- pressure hydraulic line                                                                     ξH = 3.0;

- working hydraulic lines (for each line): 

 - Boom                                                                         hoisting       ξp. = 6,2;  

 - Extension of the                                                                        boom ξv. = 5,0;  

 - extension of the                                                                         support ξsupport. = 4,3;

 - rotation of the platform                                                                      ξpov.= 3.7;

 - drain line (including filter)                                        ξsl = 7.5.

2.7. Ambient temperature:                                             to = +30ºC.

2.8. Prototype vehicle:                                                                     KS 2571