clearance fit

简明释义

间隙配合

英英释义

例句

1.When designing a shaft and bearing, it is crucial to select the correct clearance fit to avoid excessive wear.

在设计轴和轴承时，选择正确的间隙配合以避免过度磨损是至关重要的。

2.Engineers often specify a clearance fit in their blueprints to ensure proper functionality.

工程师通常在他们的蓝图中指定间隙配合以确保适当的功能。

3.The clearance fit between the piston and cylinder must be precise to maintain engine efficiency.

活塞与气缸之间的间隙配合必须精确，以维持发动机效率。

4.A loose clearance fit allows for easy assembly and disassembly of components.

宽松的间隙配合允许组件的轻松组装和拆卸。

5.In mechanical engineering, a clearance fit is often used to ensure that two parts can move freely without any obstruction.

在机械工程中，间隙配合通常用于确保两个部件可以自由移动而不受阻碍。

作文

In engineering and mechanical design, the concept of a clearance fit is crucial for ensuring that components function correctly together. A clearance fit refers to the intentional space or gap that exists between two mating parts, allowing for relative movement without causing any interference. This type of fit is particularly important in applications where thermal expansion, vibration, or wear might occur. For example, in the assembly of an engine, various components must be able to expand and contract with temperature changes without binding together. If the fit is too tight, it can lead to excessive friction and ultimately failure of the machinery. Conversely, if the fit is too loose, it can result in misalignment and operational inefficiencies.To better understand the significance of a clearance fit, consider the example of a cylindrical shaft and a hole in which it is inserted. The shaft must have a smaller diameter than the hole, creating a gap that allows the shaft to rotate freely. This gap is what defines the clearance fit. Engineers typically use precise measurements to determine the appropriate clearance needed for specific applications. The amount of clearance required can vary depending on factors such as the materials used, the operating environment, and the intended function of the assembly.There are different classes of fits, including tight fits, interference fits, and clearance fits. Each class serves a distinct purpose in mechanical design. Tight fits are used when parts need to remain securely fastened together without movement, while interference fits are employed when parts must be pressed tightly together, often requiring significant force for assembly. On the other hand, clearance fits allow for easy assembly and disassembly, making them ideal for components that require regular maintenance or replacement.In practical applications, the selection of a clearance fit is influenced by several factors. For instance, in automotive applications, the fit must accommodate not only thermal expansion but also the vibrations generated during operation. In contrast, in precision instruments, tighter clearance fits may be necessary to ensure accuracy and performance. Therefore, engineers must carefully analyze the specific requirements of each application before deciding on the appropriate fit.Moreover, the manufacturing process can also impact the final fit between components. Variations in machining tolerances can lead to differences in the actual size of parts, which may affect the intended clearance fit. Thus, quality control measures are essential to ensure that parts meet the specified dimensions and tolerances, thereby achieving the desired fit.In conclusion, the concept of a clearance fit plays a vital role in mechanical design and engineering. It ensures that components can move freely without obstruction, accommodating various operational conditions. By understanding the principles behind clearance fits and their applications, engineers can create more efficient and reliable systems. Whether in automotive design, aerospace engineering, or manufacturing, the proper application of clearance fits contributes significantly to the overall success and longevity of mechanical assemblies.

在工程和机械设计中，间隙配合的概念对于确保组件正确协同工作至关重要。间隙配合是指两个配合部件之间存在的故意空间或间隙，允许相对运动而不造成任何干扰。这种类型的配合在热膨胀、振动或磨损可能发生的应用中尤为重要。例如，在发动机的组装中，各个组件必须能够随着温度变化而扩展和收缩，而不会相互卡住。如果配合过紧，可能导致过大的摩擦，最终导致机械故障。相反，如果配合过松，可能导致错位和操作效率低下。为了更好地理解间隙配合的重要性，可以考虑一个圆柱形轴和一个其插入的孔的例子。轴的直径必须小于孔的直径，从而形成一个间隙，使轴能够自由旋转。这个间隙就是定义间隙配合的地方。工程师通常使用精确的测量来确定特定应用所需的适当间隙。所需的间隙量可能因所用材料、操作环境和组件的预期功能等因素而异。配合有不同的类别，包括紧配合、干涉配合和间隙配合。每个类别在机械设计中都有不同的用途。紧配合用于需要牢固固定在一起而不移动的部件，而干涉配合则用于必须紧密压合在一起的部件，通常需要施加较大的力进行组装。另一方面，间隙配合允许轻松的组装和拆卸，使其非常适合需要定期维护或更换的组件。在实际应用中，间隙配合的选择受到多个因素的影响。例如，在汽车应用中，配合必须适应不仅是热膨胀，还有在操作过程中产生的振动。相比之下，在精密仪器中，可能需要更紧的间隙配合以确保准确性和性能。因此，工程师必须在决定适当的配合之前仔细分析每个应用的具体要求。此外，制造过程也会影响组件之间的最终配合。加工公差的变化可能导致部件实际尺寸的差异，这可能影响预期的间隙配合。因此，质量控制措施对于确保部件符合规定的尺寸和公差至关重要，从而实现所需的配合。总之，间隙配合的概念在机械设计和工程中发挥着至关重要的作用。它确保组件能够自由移动而不受阻碍，适应各种操作条件。通过理解间隙配合背后的原理及其应用，工程师可以创造出更高效、更可靠的系统。无论是在汽车设计、航空航天工程还是制造业，间隙配合的正确应用都对机械组件的整体成功和耐用性贡献重大。