gear wheel

简明释义

齿轮

英英释义

例句

1.The mechanic replaced the broken gear wheel with a new one.

机械师用一个新的齿轮替换了损坏的。

2.The bicycle's performance depends significantly on the quality of its gear wheel.

自行车的性能在很大程度上取决于其齿轮的质量。

3.In the clock mechanism, the gear wheel is crucial for accurate timekeeping.

在钟表机制中，齿轮对准确计时至关重要。

4.He studied how the gear wheel interacts with other components in the machine.

他研究了齿轮如何与机器中的其他部件相互作用。

5.Adjusting the size of the gear wheel can change the speed of the motor.

调整齿轮的大小可以改变电动机的速度。

作文

In the world of mechanics and engineering, the term gear wheel refers to a rotating machine part that has cut teeth or cogs, which mesh with another toothed part to transmit torque. The importance of gear wheels cannot be overstated as they play a crucial role in various machines and vehicles. From simple devices like clocks to complex machinery in factories, gear wheels are fundamental components that help in the smooth operation of mechanical systems.The basic principle behind a gear wheel is its ability to transfer motion and force between different parts of a machine. When one gear wheel turns, it causes another gear wheel that is meshed with it to turn as well. This interaction can change the direction of motion, increase speed, or provide a mechanical advantage. For instance, in a bicycle, the chain connects the pedals to the rear wheel through a series of gear wheels, allowing the rider to adjust the difficulty of pedaling based on the terrain.Different types of gear wheels serve various functions in machinery. Spur gears, for example, are the most common type, characterized by their straight teeth and cylindrical shape. They are primarily used for transmitting power between parallel shafts. On the other hand, bevel gears are designed to transmit power between shafts that are at an angle to each other, typically 90 degrees. Worm gears, which consist of a worm (a screw-like gear) and a worm wheel, are used when a high reduction ratio is needed, such as in elevators or conveyor systems.The design and material of gear wheels also play a significant role in their performance. Engineers must consider factors like load capacity, speed, and environmental conditions when selecting materials for gear wheels. Common materials include steel, plastic, and brass, each chosen for their specific properties. For example, steel gear wheels are often used for heavy-duty applications due to their strength and durability, while plastic gear wheels are preferred in lighter applications where noise reduction is essential.Furthermore, the manufacturing process of gear wheels involves precision engineering to ensure that the teeth are shaped accurately for efficient meshing. Techniques such as hobbing, shaping, and grinding are commonly used to create high-quality gear wheels that meet stringent industry standards.In conclusion, gear wheels are indispensable in the realm of mechanical engineering. Their ability to transmit motion and force makes them vital components in countless machines and devices. Understanding the mechanics of gear wheels not only helps in the design and manufacturing of better machines but also enhances our appreciation of the intricate systems that power our daily lives. As technology continues to evolve, the role of gear wheels will remain crucial, driving innovation and efficiency in various fields of engineering and manufacturing.

在机械和工程的世界中，术语齿轮指的是一种旋转的机器部件，其上有切割的齿或齿轮，与另一个有齿的部件啮合以传递扭矩。齿轮的重要性不容小觑，因为它们在各种机器和车辆中发挥着至关重要的作用。从简单的时钟到工厂中的复杂机械，齿轮是帮助机械系统顺利运行的基本组件。齿轮的基本原理在于其能够在机器的不同部分之间传递运动和力。当一个齿轮转动时，它会导致与之啮合的另一个齿轮也转动。这种相互作用可以改变运动方向、提高速度或提供机械优势。例如，在自行车中，链条通过一系列的齿轮将踏板连接到后轮，允许骑行者根据地形调整踩踏的难度。不同类型的齿轮在机械中发挥着不同的功能。例如，直齿轮是最常见的类型，具有直齿和圆柱形状，主要用于在平行轴之间传递动力。另一方面，锥齿轮设计用于在相互成角度（通常为90度）的轴之间传递动力。蜗轮蜗杆则由一个蜗杆（螺旋形齿轮）和一个蜗轮组成，通常在需要高减速比的情况下使用，例如在电梯或输送系统中。齿轮的设计和材料在其性能中也起着重要作用。工程师在选择齿轮的材料时必须考虑负载能力、速度和环境条件等因素。常用的材料包括钢、塑料和黄铜，每种材料都有其特定的属性。例如，钢制齿轮通常用于重型应用，因为它们强度高且耐用，而塑料齿轮则更适用于轻型应用，尤其是在噪音减少方面。此外，齿轮的制造过程涉及精密工程，以确保齿形准确，以便高效啮合。常用的制造技术包括铣削、成型和磨削，这些技术用于生产符合严格行业标准的高质量齿轮。总之，齿轮在机械工程领域是不可或缺的。它们传递运动和力的能力使它们成为无数机器和设备中的重要组成部分。理解齿轮的工作原理不仅有助于更好地设计和制造机器，还增强了我们对推动日常生活中复杂系统的欣赏。随着技术的不断发展，齿轮的作用将继续至关重要，推动各个工程和制造领域的创新与效率。