pitch diameter

简明释义

中径;节径

英英释义

例句

1.The engineer calculated the pitch diameter to ensure the gears mesh properly.

工程师计算了节径以确保齿轮正确啮合。

2.To achieve optimal performance, the pitch diameter of the pulleys must match.

为了实现最佳性能，滑轮的节径必须匹配。

3.The manufacturer provided detailed information about the pitch diameter in the product manual.

制造商在产品手册中提供了有关节径的详细信息。

4.During the inspection, we measured the pitch diameter of the shafts to ensure they met specifications.

在检查过程中，我们测量了轴的节径以确保它们符合规格。

5.In a screw thread, the pitch diameter is critical for determining the fit with a nut.

在螺纹中，节径对确定与螺母的配合至关重要。

作文

In the field of engineering and manufacturing, understanding the concept of pitch diameter is crucial for designing and analyzing gears and other mechanical components. The pitch diameter is defined as the diameter of an imaginary circle that passes through the points where the teeth of two meshing gears effectively engage. This measurement is essential because it directly influences how gears interact with one another, affecting their efficiency and performance.To illustrate the importance of pitch diameter, consider a simple gear system consisting of two gears: Gear A and Gear B. If Gear A has a pitch diameter of 10 cm and Gear B has a pitch diameter of 20 cm, we can determine the gear ratio by comparing these diameters. The gear ratio, which is the ratio of the number of teeth on the gears, is influenced by the pitch diameter. In this case, the gear ratio would be 1:2, meaning that for every rotation of Gear A, Gear B will complete half a rotation. This relationship is fundamental in applications ranging from simple machinery to complex automotive systems.Moreover, the pitch diameter plays a significant role in determining the load capacity of gears. When gears are designed, engineers must ensure that the pitch diameter is appropriate for the intended application. If the pitch diameter is too small relative to the load being transmitted, the gears may wear out quickly or even fail. Conversely, if the pitch diameter is too large, it may lead to inefficiencies in power transmission. Thus, selecting the correct pitch diameter is vital for ensuring the longevity and reliability of mechanical systems.Another critical aspect of pitch diameter is its relationship with other dimensions of gears, such as the base diameter and outer diameter. The base diameter is the diameter of the circle from which the tooth profile is generated, while the outer diameter is the total width of the gear including its teeth. Understanding how these dimensions relate to the pitch diameter allows engineers to create gears that mesh properly and operate smoothly.In summary, the concept of pitch diameter is integral to the design and function of gears in mechanical systems. It not only helps in determining the gear ratio but also affects load capacity and overall efficiency. Engineers must pay close attention to the pitch diameter when designing gear systems to ensure optimal performance and durability. As technology continues to advance, the importance of accurately calculating and implementing the pitch diameter will only grow, making it a fundamental aspect of mechanical engineering education and practice.

在工程和制造领域，理解基径的概念对于设计和分析齿轮及其他机械组件至关重要。基径被定义为一条假想圆的直径，该圆通过两个啮合齿轮有效接触的齿尖。这个测量值至关重要，因为它直接影响齿轮之间的相互作用，从而影响其效率和性能。为了说明基径的重要性，考虑一个由两个齿轮组成的简单齿轮系统：齿轮A和齿轮B。如果齿轮A的基径为10厘米，而齿轮B的基径为20厘米，我们可以通过比较这些直径来确定齿轮比。齿轮比是齿轮上齿数的比率，受基径的影响。在这种情况下，齿轮比将是1:2，这意味着每当齿轮A旋转一圈时，齿轮B将完成半圈的旋转。这种关系在从简单机械到复杂汽车系统的应用中都是基础。此外，基径在确定齿轮的载荷能力方面也起着重要作用。当设计齿轮时，工程师必须确保基径适合预期的应用。如果基径相对于传递的载荷过小，齿轮可能会迅速磨损甚至失效。相反，如果基径过大，可能会导致功率传输效率低下。因此，选择正确的基径对于确保机械系统的耐用性和可靠性至关重要。基径的另一个关键方面是它与齿轮其他尺寸（如基圆直径和外径）的关系。基圆直径是生成齿轮轮廓的圆的直径，而外径是包括齿在内的齿轮的总宽度。理解这些尺寸如何与基径相关，使工程师能够创建啮合良好且运行平稳的齿轮。总之，基径的概念对于机械系统中齿轮的设计和功能是不可或缺的。它不仅有助于确定齿轮比，还影响载荷能力和整体效率。工程师在设计齿轮系统时必须密切关注基径，以确保最佳性能和耐用性。随着技术的不断进步，准确计算和实施基径的重要性只会增加，使其成为机械工程教育和实践中的基本方面。