Cable Stringing Equipment Tension Equipment for Transmission Line
| Performance Parameter 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
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| 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
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| 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
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| Electrical System - System voltage: 24V
- Storage battery: 6-QA-110
- Diesel engine starting: 24V electric starting
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| Engine - Model: Cummins 4BT3.9-C105
- Nominal speed: 2800r/min
- Nominal power (1 hour): 77KW
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| Safe Operation Rules | Only the workers who are familiar with safe operation rules and maintain demand of this tension machine and are professionally trained could be allowed to operate. |
| | - When operating tensioner, you shall control handle and adjust pressure steadily and avoid over-violent and quick force and brutal operation. When tension laying , special attention shall be paid to prevent reducing or increasing tension to a large extent to result in conductor fluctuating greatly and damaging span frame and other buildings.
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| | - Both operators of tensioner and puller shall communicate each other to avoid that puller begins to work under operating condition of tensioner not tension laying and cause serious accident.
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| | - Absolutely prohibit using reverse pulling function to brake.
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| | - Regularly check the fixed bolt of the nylon sector, prevent loose bolt to damage the wires and cause unnecessary losses.
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| | - When tensioner works, it is prohibited that operators give up operating or leave puller.
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| | - When tension stringing, the pull handle should be middle position. It is forbidden to throw the handle to prevent to cause serious accident as running line.
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| | - In the process of tension laying , continuously observe each pointer; water temperature of engine shall be not more than 95℃; hydraulic oil temperature shall be not more than 85℃; Oil-filling pressure shall be not less than 1Mpa and not more than 1.8Mpa; brake oil pressure shall be not less than 1.8Mpa and not more than 4Mpa. Otherwise, the machine shall be stopped immediately for check.
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| | - When tensioner operates, rotary speed of engine keeps around 1200r/min to maintain higher power and prevent overheating of hydraulic oil.
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| | - In the process of tension laying, it is strictly prohibited that brake handle is put in brake position; otherwise, serious accident will be caused.
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| | - Under operating condition of driving, to change driving direction of tensioner shall be carried out after tension pulleys stop completely.
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| | - Pressure of each safety valve shall be preset, avoid random adjustment! If accidents, for example, tensioner fails to work, are caused from adjusting valve without permission, it will bring you much trouble and loss.
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