rotating crank

简明释义

回转曲柄

英英释义

例句

1.In the assembly line, workers adjust the speed of the machine by changing the rotating crank settings.

在生产线上，工人通过调整旋转曲柄的设置来改变机器的速度。

2.He fixed the bicycle's gear system by replacing the broken rotating crank.

他通过更换损坏的旋转曲柄修理了自行车的齿轮系统。

3.When you pedal the bike, the pedals turn the rotating crank that drives the chain.

当你踩踏板时，踏板转动旋转曲柄，驱动链条。

4.The engine uses a rotating crank to convert linear motion into rotational motion.

发动机使用一个旋转曲柄将线性运动转换为旋转运动。

5.The rotating crank in the toy car allows it to move forward when wound up.

玩具车中的旋转曲柄使其在上紧后向前移动。

作文

In the world of mechanical engineering, one of the fundamental components that plays a crucial role in various machines is the rotating crank. A rotating crank is essentially a lever arm that converts rotary motion into linear motion or vice versa. This mechanism can be found in numerous applications ranging from simple hand-cranked devices to complex internal combustion engines. Understanding how a rotating crank works is vital for anyone interested in mechanics or engineering. The basic principle behind a rotating crank is quite straightforward. When the crank is rotated around its pivot point, it moves in a circular path. As it rotates, it pushes or pulls on a connecting rod, which in turn creates linear motion. This conversion of motion is essential in many devices. For instance, in a bicycle, the pedals act as a rotating crank, converting the rider's foot pedal motion into the rotation of the bike's wheels. Another prime example can be seen in the design of an internal combustion engine. The engine utilizes a rotating crank to transform the linear movement of the pistons into rotational energy that ultimately powers the vehicle. The efficiency and effectiveness of this transformation are crucial for the performance of the engine. Without a well-designed rotating crank, the engine would not function optimally, leading to decreased power output and increased fuel consumption. Moreover, the design and material used for a rotating crank are critical factors that engineers must consider. A crank made from lightweight yet durable materials can significantly improve the performance of a machine. Materials such as aluminum alloys and carbon fiber composites are often used to reduce weight while maintaining strength. Engineers also need to ensure that the rotating crank is balanced correctly to minimize vibrations and wear during operation. In addition to traditional mechanical applications, the concept of a rotating crank has been adapted in modern technologies, including robotics and automation. In robotic arms, for example, a rotating crank might be used to facilitate the movement of the arm in a controlled manner, allowing for precise actions in manufacturing processes. This versatility highlights the importance of the rotating crank in both historical and contemporary engineering contexts. In conclusion, the rotating crank is more than just a simple mechanical part; it is a vital component that bridges the gap between rotational and linear motion in various applications. Its significance spans across different fields, making it essential knowledge for engineers and mechanics alike. By understanding the mechanics of a rotating crank, one can appreciate the intricate designs and innovations that drive our technology forward. Whether in bicycles, engines, or advanced robotics, the rotating crank remains a key player in the machinery that shapes our world.

在机械工程的世界中，起着至关重要作用的基本组件之一就是旋转曲柄。旋转曲柄本质上是一个杠杆臂，用于将旋转运动转换为线性运动或反之亦然。这种机制可以在从简单的手摇设备到复杂的内燃机等众多应用中找到。理解旋转曲柄的工作原理对于任何对机械或工程感兴趣的人来说都是至关重要的。 旋转曲柄背后的基本原理相当简单。当曲柄围绕其支点旋转时，它沿着圆形路径移动。随着它的旋转，它推动或拉动连接杆，从而产生线性运动。这种运动的转换在许多设备中都是必不可少的。例如，在自行车中，踏板充当旋转曲柄，将骑行者的脚踏运动转换为自行车轮子的旋转。 另一个主要例子可以在内燃机的设计中看到。发动机利用旋转曲柄将活塞的线性运动转化为旋转能量，从而最终驱动车辆。这种转换的效率和有效性对于发动机的性能至关重要。如果没有精心设计的旋转曲柄，发动机将无法最佳运行，导致功率输出减少和燃料消耗增加。 此外，工程师必须考虑旋转曲柄的设计和材料使用。由轻质但耐用材料制成的曲柄可以显著提高机器的性能。铝合金和碳纤维复合材料等材料常常被用来减轻重量，同时保持强度。工程师还需要确保旋转曲柄平衡良好，以最小化操作过程中的振动和磨损。 除了传统的机械应用，旋转曲柄的概念在现代技术中也得到了应用，包括机器人和自动化。在机器人臂中，例如，旋转曲柄可能用于以受控方式促进手臂的运动，从而允许在制造过程中进行精确操作。这种多功能性突显了旋转曲柄在历史和当代工程背景下的重要性。 总之，旋转曲柄不仅仅是一个简单的机械部件；它是一个至关重要的组件，连接着各种应用中的旋转运动和线性运动。它的意义跨越不同领域，使其成为工程师和机械师必备的知识。通过理解旋转曲柄的机械原理，人们可以欣赏推动我们技术进步的复杂设计和创新。无论是在自行车、发动机还是先进的机器人中，旋转曲柄始终是塑造我们世界的机器中的关键角色。