ROCKHIT 2023 – Finalising a high-throughput, low-emission breaker attachment for use in construction

ROCKHIT 2023 — 最终确定用于建筑的高吞吐量、低排放断路器附件

• 批准号: 10079274
• 金额: $ 25.36万
• 依托单位: WEBSTER TECHNOLOGIES LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=10079274
• 关键词: ROCKHIT; 2023; Finalising; throughput; low

In order for the UK construction sector to reach net-zero, equipment must become markedly more efficient and emissions reduced. At the same time, new infrastructure needed to incorporate renewable energy and low carbon transport will lead to an increase in construction activity. We, at Webster Technologies, have developed a breaker, used in construction, demolition and quarrying to shatter concrete and rock. Whilst competitors use hydraulics to actuate a chisel or hammer at relatively high speed (1200 blows per minute) and low energy per blow; we have designed and built prototypes that use elastic ropes to generate up to 20-times higher blow energy. The breaker operates at a lower speed (60-90 blows per min) and attaches easily to any excavator's hydraulic system.Benchmarking has shown a potential threefold increase in productivity (amount of material broken) alongside a halving in fuel consumption for the base vehicle. Smaller base vehicles can be used, further reducing fuel costs, hire costs and logistics costs of delivering vehicles to sites. Noise and vibration nuisance to operators and site neighbours are reduced. Wear on the bases vehicle is reduced, allowing new modes of operation, e.g. on a boom up to 27m long. However, operational life of current prototypes is only ~160 hours before major overhaul, vs. industry accepted standards of 500 hours.We have conducted FEA to identify subcomponents prone to failure and revise designs accordingly. In this project, we will design and build three new prototype breaker attachments and repeat benchmarking to achieve a 500 hour unit life. Balfour Beatty Vinci JV-HS2 as main contractor delivering HS2 will trial outputs and are a likely first Tier 1 customer, followed by further UK large plant hire companies.

为了使英国建筑业达到净零排放，设备必须明显提高效率并减少排放。与此同时，纳入可再生能源和低碳运输所需的新基础设施将导致建筑活动的增加。我们，在韦伯斯特技术，已经开发出一种破碎机，用于建筑，拆除和采石粉碎混凝土和岩石。虽然竞争对手使用液压驱动凿子或锤子以相对较高的速度（每分钟1200次打击）和较低的每次打击能量，但我们设计并建造了使用弹性绳索的原型，以产生高达20倍的打击能量。破碎机的工作速度较低（每分钟60-90次打击），易于安装在任何挖掘机的液压系统上。基准测试表明，生产率（破碎物料量）可能提高三倍，基础车辆的燃油消耗可能减少一半。可以使用较小的基础车辆，进一步降低燃料成本、租赁成本和将车辆交付到现场的物流成本。减少了对操作员和现场邻居的噪音和振动滋扰。减少了基础车辆的磨损，允许新的操作模式，例如在长达27米的吊杆上。然而，当前原型的使用寿命在大修前仅为约160小时，而行业公认的标准为500小时。我们已进行了有限元分析，以确定容易发生故障的子组件，并相应地修改设计。在这个项目中，我们将设计和建造三个新的原型断路器附件，并重复基准测试，以实现500小时的单位寿命。Balfour Beatty芬奇JV-HS 2作为交付HS 2的主要承包商，将进行试验输出，并可能成为第一个一级客户，随后是更多的英国大型工厂租赁公司。