Power Line Stringing Equipment Hydraulic Cable Puller German
Rexroth Main pump
This hydraulic puller has the following features:
1. The hydraulic puller is a hydraulic transmission puller, which
adopts German Rexroth hydraulic control swashplate variable pump
and German Rexroth inclined shaft hydraulic motor to form a closed
circuit hydraulic transmission system. Advanced technology, power
saving, high transmission efficiency, reliable quality, and self
overload protection function to prevent the damage of hydraulic
impact and the acceleration of oil temperature rise.
2. The German Rexroth planetary reducer has compact structure and
reliable quality.
3. The international advanced hydraulic servo is used to control
pulling or reversing, so as to realize stepless and smooth
adjustment of pulling speed, and the operation is light, flexible
and reliable.
4. The friction plate wet brake is integrated in the planetary
reducer to avoid routine maintenance. Spring braking, hydraulic
release, simple operation, fast reaction speed, can realize gapless
braking, safe and reliable. In the shutdown state, it can prevent
the running accident caused by the loosening of the tail rope. In
case of sudden engine shutdown or accident, it has the function of
self braking protection.
5. The handle adopts positioning design, which is convenient for
timely and accurate adjustment and control, easy to operate and
reduce the fatigue strength of operators.
6. Aluminum alloy plate fin radiator is adopted, and the fan driven
by hydraulic motor is used for forced cooling, which has good heat
dissipation effect, stability and long working time. The fan air
volume can be adjusted timely and conveniently according to the
specific environment and working temperature.
7. The hydraulic filter has a bypass valve to protect the system
from damage.
| Performance parameter |
| Max intermittent pulling force | 150 kN |
| Max continuous pulling force | 120 kN |
| Corresponding pulling force | 60 kN |
| Max continuous tractive speed | 5 km/h |
| Corresponding speed | 2.5 km/h |
| Groove number | 9 |
| Weight | 6600 kg |
| Pulling wheel diameter | 600 mm |
| Max diameter of applicable pulling rope | 26 mm |
| Hoisting mode | Single point |
| Overall dimension (length*width*height) | 4800*2350*2470 mm |
| Engine |
| Type | Cummins 6CTA8.3-C260 |
| Model | Straight type six-cylinder pressurizing four-stroke diesel engine |
| Cylinder diameter * strok | 114*135 mm |
| Rated speed | 2200 r/min |
| Rated power (one hour power) | 194 kw |
| Total air output | 8.3 L |
| Fuel consumption rate (bench test) | 238 g/kw.h |
| Max torque | 1135 Nm |
| Cooling method | forced air cooling |
| Rotary speed when maximum torque | 1500 r/min |
| Auxiliary oilway hydraulic system |
| Open type constant displacement throttle speed governing hydraulic
system is supplied oil by gear pump and controls oil liquor’s
cooling and hoisting tail bracket’s lifting of the whole hydraulic
system through hand operated direction valve and ball valve. |
| System working pressure | 12Mpa |
| Fan motor | GM5-12-1FE13-S-20 |
| Sleeve extension oil cylinder | 3TG110×250 |
| Duplex gear pump | 1PF2G2-4X/016+014RR20MRL |
| Radiator | B5024 |
| Hoisting motor | J2K-305 |
| Electric system |
| System voltage | 24V |
| Storage battery | 24V electric starting |
| Drive system |
| Closed type circuit hydraulic drive system adjusts speed through
hydraulic plunger pump with bi-directional variable displacement,
reduces speed through planet gear and drives pulling wheels to
rotate in positive and negative directions through the first level
gear terminal drive. |
| Cooling mode: forced cooling |
| Main pump |
| Model | sloping cam plate bi-directional plunger pump (German Rexroth) |
| Type | A4VG250EP4DT1/32R-NSF02F021 |
| Hydraulic motor |
| Model | inclined-axis bi-directional constant displacement tapered plunger
motor (German Rexroth) |
| Type | A2FE180/61W-VZL106 |
| Speed reducer |
| Model | two-grade planet gear reduction (German Rexroth made by Beijing
sole investment plant) |
| Type | 310 L2 |
| Brake response pressure | 2.5Mpa |
| Reduction ratio | 21.8 |
