Development of a novel hydraulic breaker for attachment on excavation equipment

挖掘机液压破碎机附件在世界各地的建筑、拆除和采石业已有40多年的历史。在这段时间里，他们的发展只看到了渐进的改进。根据所使用的机制，性能不太可能有重大进步。然而，市场继续要求更低的拥有成本和更高的性能重量比。客户希望减少操作机器所需的资源，提高断路器的效率和燃料消耗，而高噪声水平仍然是该技术的副产品。自1965年以来，韦伯斯特技术公司(Webster Technologies(WT))在开发开创性的“重型”设备方面有着悠久的历史。最近，WT成功地开发了一种用于挖掘机的“无齿轮箱”凿岩机附件，目前已在全球销售。在对产生更高冲击力的替代方法进行了广泛的研究后，WT开发了一种市场上独有的新型断路器概念。这项技术有可能解决客户刚才概述的许多问题，并使断路器性能发生阶段性变化。这一革命性的解决方案基于一种新型的弹射式活塞机构，该机构已经成功地进入了概念验证(PoC)阶段。在试验中，PoC系统已经证明在较低的发动机转速下冲击能量为4500焦耳。同样，我们的系统提供的冲击能量是目前市场上最好的断路器的3到4倍，使用大约。节省20%的燃料。较低的打击频率和较低的挖掘机发动机转速导致人类感知的噪音水平要低得多，并在PoC试验期间得到操作员反馈的证实。然而，为了将该产品推向市场，我们必须首先进行研究和开发，以解决试验期间出现的关键挑战。通过克服这些挑战，我们将交付经过充分测试和验证的试生产样机。

Hydraulic breaker attachments for excavators have been used throughout the world in theconstruction, demolition and quarrying industries for over 40 years. Their development hasseen only incremental improvements during this time. Major advancements in performanceare unlikely based on the mechanism utilised. The market however, continues to demandsuperior performance-to-weight ratio with lower cost of ownership. Customers want to reducethe resources required to operate their machines, increase the efficiency of breakers and fuelconsumption, while high noise levels remain a debilitating by-product of the technology.Webster Technologies (WT) has a long history of developing pioneering “heavy” equipmentsince 1965. More recently, WT have been successful in developing a “gearbox-less” rockcutter attachment for excavators, which is now sold globally. Following extensive researchinto alternative methods for generating higher impact forces, WT has developed a new type ofbreaker concept unique to the market. The technology has the potential to address many of thecustomer issues just outlined and make a step-change in breaker performance.The revolutionary solution is based on a novel catapult piston mechanism, which has beensuccessful up to proof of concept (PoC) stage. During trials, the PoC system has demonstrated4500 joules of impact energy at a lower engine revs. Like for like, our system delivers 3 to 4times more impact energy than the best breaker currently available on the market, usingapprox. 20% less fuel. The lower frequency of blows and lower excavator engine revs resultsin a much lower perceived noise level by humans and confirmed by operator feedback duringPoC trials.However, in order to deliver this product to market we must first undertake research anddevelopment to address key challenges which arose during the experimental trials. Byovercoming these challenges we will deliver a fully tested and validated pre-productionprototype.