lower bearing shell

简明释义

下轴瓦

英英释义

例句

1.The mechanic explained that a damaged lower bearing shell (下轴承壳) can lead to serious engine failure.

机械师解释说，损坏的lower bearing shell (下轴承壳) 可能导致严重的发动机故障。

2.During the maintenance, we noticed that the lower bearing shell (下轴承壳) had developed a crack.

在维护过程中，我们注意到lower bearing shell (下轴承壳) 上出现了裂缝。

3.Replacing the lower bearing shell (下轴承壳) is essential for maintaining engine performance.

更换lower bearing shell (下轴承壳) 对于维持发动机性能至关重要。

4.The technician inspected the engine and found that the lower bearing shell (下轴承壳) was worn out.

技术员检查了发动机，发现lower bearing shell (下轴承壳) 磨损严重。

5.He ordered a new lower bearing shell (下轴承壳) to replace the old one in the car.

他订购了一个新的lower bearing shell (下轴承壳) 来替换汽车中的旧件。

作文

In the world of mechanical engineering, precision and reliability are paramount. One critical component that plays a significant role in machinery is the bearing system. Bearings are essential for reducing friction and supporting rotating parts, and among them, the lower bearing shell is particularly important. The lower bearing shell serves as a crucial support structure for the crankshaft in an internal combustion engine, allowing it to rotate smoothly while minimizing wear and tear. The design of the lower bearing shell must be robust enough to withstand high loads and temperatures. Typically made from materials such as aluminum or bronze, these shells are engineered to provide a durable surface that can endure the stress of continuous operation. When the engine runs, the lower bearing shell absorbs the weight of the crankshaft and distributes it evenly, which helps maintain the integrity of the engine components.One of the key functions of the lower bearing shell is to facilitate lubrication. Oil flows between the crankshaft and the bearing shell, creating a thin film that reduces friction. This lubrication is vital for preventing overheating and ensuring the longevity of the engine. Without a properly functioning lower bearing shell, the crankshaft could experience excessive wear, leading to catastrophic engine failure.Moreover, the installation and maintenance of the lower bearing shell are crucial processes in engine assembly. Engineers must ensure that the shells are correctly aligned and torqued to the manufacturer’s specifications. Any deviation can lead to misalignment, increased friction, and ultimately, engine damage. Regular checks and replacements of the lower bearing shell are necessary to keep the engine running efficiently. The importance of the lower bearing shell extends beyond just its mechanical function; it also has implications for performance and fuel efficiency. A well-maintained bearing system contributes to smoother engine operation, which can enhance overall vehicle performance. Conversely, neglecting the condition of the lower bearing shell can result in decreased efficiency, higher fuel consumption, and increased emissions. In conclusion, the lower bearing shell is a vital component in the functioning of internal combustion engines. Its ability to support the crankshaft, facilitate lubrication, and withstand high loads makes it indispensable in mechanical systems. Understanding the role of the lower bearing shell not only highlights its significance but also emphasizes the importance of regular maintenance and proper engineering practices in ensuring the longevity and efficiency of machinery. As technology advances, innovations in bearing materials and designs will likely continue to improve the performance of the lower bearing shell and, by extension, the entire engine system.

在机械工程的世界中，精确和可靠性至关重要。一个在机器中发挥重要作用的关键部件是轴承系统。轴承对于减少摩擦和支持旋转部件是必不可少的，其中，下轴承壳尤其重要。下轴承壳作为内燃机曲轴的关键支撑结构，允许其平稳旋转，同时最小化磨损。下轴承壳的设计必须足够坚固，以承受高负荷和高温。通常由铝或铜合金等材料制成，这些壳体经过工程设计，以提供耐用的表面，可以承受持续运行的压力。当发动机运行时，下轴承壳吸收曲轴的重量并均匀分布，这有助于保持发动机组件的完整性。下轴承壳的一个关键功能是促进润滑。油在曲轴和轴承壳之间流动，形成一层薄膜，减少摩擦。这种润滑对于防止过热和确保发动机的使用寿命至关重要。如果没有正常工作的下轴承壳，曲轴可能会经历过度磨损，导致灾难性的发动机故障。此外，下轴承壳的安装和维护是发动机组装中的关键过程。工程师必须确保壳体正确对齐并按照制造商的规格进行扭矩调整。任何偏差都可能导致不对中、摩擦增加，最终导致发动机损坏。定期检查和更换下轴承壳是保持发动机高效运行所必需的。下轴承壳的重要性不仅仅体现在其机械功能上；它还对性能和燃油效率产生影响。良好维护的轴承系统有助于发动机的平稳运行，从而增强整体车辆性能。相反，忽视下轴承壳的状态可能导致效率下降、燃油消耗增加和排放增加。总之，下轴承壳是内燃机正常运作的关键部件。它支持曲轴、促进润滑和承受高负荷的能力使其在机械系统中不可或缺。理解下轴承壳的作用不仅突出了它的重要性，还强调了定期维护和适当工程实践在确保机械设备的耐用性和效率方面的重要性。随着技术的进步，轴承材料和设计的创新可能会继续改善下轴承壳的性能，从而提升整个发动机系统的表现。