Tension Stringing Equipment Hydraulic Tension For Overhead Line With Cummins Engine
Performance Parameter
| Structure Parameters |
| Bull-wheel diameter | 1500mm |
| Groove numbers | 2×8 |
| Max conductor diameter | 40mm |
| Weight of the whole machine | 10500kg |
| Overall dimension (length, width, height) | 5300X2300X2600 |
| Main technical performance |
| Tension condition |
| Max intermittent tension | 2×70kN |
| Max continuous tension | 2×65kN |
| Speed at max tension | 2.5km/h |
| Max speed | 5km/h |
| Tension at max speed | 2x35kN |
| Traction condition |
| Max reverse pulling force | 2×60kN |
| Speed at max pulling force | 2.5km/h |
| Max reverse pulling speed | 5km/h |
| Pulling at max speed | 2×30kN |
| Transmission System |
| With closed double-loop hydraulic transmission system and planet decelerator, tension wheel is driven by primary gear. hen inverted, the magnitude of reverse traction force is led by exit pressure of pump. In tension condition, hydraulic motor rotation is driven by the tension wheel; the magnitude of tension is controlled by regulating the motor exit pressure. |
| Main pump |
| Type | Hydraulic control bidirectional variable plunger pump(German Rexroth) |
| Model | A4VG90HD3 |
| Hydraulic motor |
| Type | Two-way Quantitative Plunger Piston Motor(German Rexroth) |
| Model | A2FM90 |
| Speed reducer |
| Type | planet Gear Decelerator |
| Model | 307 L2 |
| Reduction ratio | 17.4 |
| Brake opening pressure | 2.5MPA |
| Engine |
| Model | Cummins 4BT3.9-C105 |
| Nominal speed | 2800r/min |
| Nominal power (1 hour) | 77KW |
| Electrical System |
| System voltage | 24V |
| Storage battery | 6-QA-110 |
| Diesel engine starting | 24V electric starting |
Inspection before Operation
1. Check lubricating grease in open type gear box, if the lubricating grease is short, it shall be filled on the gear between two pulling wheels. Type of lubricating grease: general lithium base grease for automobile.
2. Check oil mass in hydraulic oil tank (taking lower limit of oil level scale as the standard), if the oil is short, it shall be filled. Oil type: 8D＃low solidifying hydrodynamic drive oil.
3. Check fuel oil in fuel tank of engine, if the fuel oil is short, it shall be filled.
4. Check engine oil, if the engine oil is short, it shall be filled to prescribed oil level
5. Check cooling water in water tank of engine, if the cooling water is short, it shall be filled (special explanation: Do add anti-freezing fluid if the ambient temperature is below 5°).
6. Check whether high-pressure oil pipe joints of hydraulic pump and motor are firm.
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