在可控或可变间距螺旋桨(CPP)中,螺旋桨叶片附接到凸台,并且它们的间距可以通过液压系统改变。刀片可拆卸,因此如果它们会产生损坏,可以在不移除整个螺旋桨的情况下进行修复。
For the advantages that a CPP system gives, the CPP propellor is also more complex. Instead of the Monoblock design of a Fixed propellor, the CPP has multiple moving parts in the propellor and shaft, and a hydraulic system with which to control the pitching.

ATZ can support you with inspections and repairs afloat, in dock or even with a dive team. Either way, ATZ can support all your class approved CPP propellor requirements.

CPP

与一个CPP you can control the pitch of the entire propeller, by changing the orientation of the root section of the propellor relative to the hub. This is done by the means of a hydraulic cylinder.

When the required orientation or pitch of the propeller is reached, the blades are locked in that position. So, the blades are not an integral part of (or not casted along with) the propeller hub. They are mounted on spindles that have axes perpendicular to the shaft axis.

AtZ Services

CPP的优点

可用于船舶的前向和止线操作的非可逆发动机,因此可以降低整体推进机械重量。

CPP is useful in changing the speed of the ship without changing the rpm of the main engine.

因此,可以直接从导航桥处理船的速度。对于FPP,需要船舶工程师以改变船舶的速度。CPP技术可用于获得更快的速度变化响应。

逆行操作比使用FPP推进器更有效。

推进改装

Disadvantages of a CPP

俯仰控制机制足够复杂,需要定期检查

CPP推进器的初始成本比FPP推进器更高

Hub length and diameters are larger than for FPP, in order house the pitch control mechanisms

即使在以恒定功率要求运行时,CPP通常用于以可变速度运行所需的船舶。

Typical applications are:
  • 拖船,
  • Trawlers
  • 渡轮
  • ice breakers
  • 与燃气轮机的小战舰。
Dry Dock
Potential propellor damage and resulting intervention is like an FPP type propellor.
  • 螺旋桨blade straightening due to grounding
  • 空化修复
  • 由于腐蚀或空化的抗冲击损伤或二次效应导致的破裂
  • New blade tip installation by welding if tip damage is excessive
和FPP也需要在干码头的最低金额最短的服务,包括:
  • 由于海洋生长的积累而抛光
  • Blade modification for increased efficiency
  • Balancing to reduce vibration
  • Inspection and non-destructive testing to meet class survey requirements
But unlike FPP requires additional works:
  • Shaft survey and shaft removal
  • Blade foot O-rings replacement
  • 枢纽检查
  • Oil distribution box check
  • SKF耦合检查
controllable pitch propellers

螺旋桨Servicing or Repair needs.

与我们的合作伙伴Aegir海洋的ATZ有能够满足您的校验服务或维修需求。

CPP repairs will mostly take place afloat or at the shipyard but we can offer all options:

  • Vessel afloat, we work with qualified and experienced diving companies.
  • 在造船厂(基本上是任何地方),我们的螺旋桨专家将对您的螺旋桨进行任何要求的工作。
  • In-house, in our fully equipped workshop an excellent propeller repair team will carry out the repair. Our repairs are comprehensively supported by our in-house hydrodynamic engineer to ensure we return you and efficient and well-balanced propellor.

我们的所有维修程序都与分类协会密切合作,然后进行了详细的报告。


FAQ’s

固定间距螺旋桨(FPP)和可控音高螺旋桨(CPP)之间有什么区别?

A fixed pitch propeller is typically cast in a single piece and has its pitch set at the factory. The propellor is tailor made for the vessel and is optimised for efficiency and minimised noise and vibration.
A controllable pitch propellor has separate blades that can rotate relative to the hub of the propellor. This means that the direction and speed of travel of the vessel can be changed without changing shaft rpm, or even changing the direction of shaft rotation. CPP propellors are typically required where a far greater range of manoeuvrability is required, or the vessels operational profile is more varied.

How often do I need to maintain my CPP system?

Classification societies require five and ten-year inspections.
During the five year inspection expect: Cleaning, Inspection, Preventative replacement of some parts, External inspection for wear and damage. During the ten year inspection expect a more comprehensive inspection of CPP components is required. Then a decision can be made on what needs refurbishment or replacement.

我必须删除我完整的螺旋桨修复刀片的伤害吗?

可否在抛光裂缝和空化损坏,尖端修复和矫直等维修,可以对单独的可拆卸刀片进行。依赖于损坏水平,最好的选择可能是用备用取代损坏的刀片。

你的行业是我们的行业

与我们的技术专家团队交谈

Our team of technical experts offer industry-leading consultation services, equipment sales and support and with a wealth of project management and technical experience, we plan and deliver. We work with you to ensure a smooth project from design specification to onsite installation. Our impartial guidance and multi-supplier approach mean we are focused on finding you the best solution meaning you can be confident in both our services and products.

今天与我们交谈 118金博宝娱乐城
Top