The emergence of electric tools has changed the way human beings produce
发布者：admin 时间：2021-09-29
With the continuous advancement of science and technology, more and more power tools have emerged to improve work efficiency and replace heavy physical tasks. It is no exaggeration to say that the emergence of power tools has changed the face of the world. Tools are instruments that give humans mechanical advantages. In the animal world, many birds and primates also use tools, but there is one thing that sets us apart from them, and that is power. Unlike other animals in the animal kingdom, we humans not only rely on physical strength, but can use other energy sources to drive tools. image007.jpg We may not have superpowers, but we have power tools. Power tools cover all aspects of our lives in medical care, manufacturing, construction, rescue and so on. During the industrial revolution in the 19th century, factories used gas, steam and electricity to give tools more power. Since the 1960s, people have once again transformed power tools to enable them to be used in ordinary households. The global market share of power tools is 23.4 billion U.S. dollars. About 40% of them are from North America, 22% are from Asia, and 27% are from Europe. Power tools account for about 75% of all power tools sold. image008.jpg The power of a power tool depends on how much voltage it can withstand. You can think of voltage as water pressure. The greater the pressure of water management, the stronger the jet of water. The same is true for voltage. The more volts in the tool, the greater the power the tool can generate. Getting sufficient voltage also means plugging in the power source, but the discovery of the battery changed everything. Battery-powered tools were first used on the moon in the 1960s. The Apollo astronauts needed a small hand-held electric drill to drill into the surface of the moon to collect soil samples, so engineers designed a special power tool battery pack. Since then, the cordless drill was produced. This unique invention was first applied to the handheld cordless vacuum cleaner launched in 1979. After that, it led to the reform of household electric tools. image009.jpg The power tools we know and use rely on people's physical energy, electricity, gasoline and compressed air to run, but the tools used by professionals are more powerful. In some car races, we will often see racing maintenance personnel use pneumatic wrenches to remove tires, because races have time constraints, they must race against time to save time. It only takes 12 seconds for the maintenance personnel to remove the nuts of the four tires, because the speed of the lightning gun wrench can reach 25,000 rpm in 1 minute. Its power comes from compressed air, which is compared with a standard pneumatic wrench with 2000 revolutions per minute. The speed of the lightning gun is 12.5 times that of them. This speed can remove a nut within 0.2 seconds to remove the nut of the tire. If using a standard pneumatic wrench. Instead of a thunder gun, the 12 seconds to change the tire will become three minutes. image010.jpg In the 19th century, there is a legendary story. The protagonist is named John Henry, a worker who built a railway. This worker was the strongest worker at the time. His job was to drive nails into the railroad tracks. There was no one at that time. Can beat him, and then a power tool was born, the appearance of the air hammer makes people no longer need to use brute force to drive nails. The worker fearlessly challenged the air hammer, and the man-machine war began. Who can beat faster? The final result was that human Henry won. But due to excessive physical exhaustion, he died soon after. Of course, this is just a legend. In today's era, even the commonly used hammers and nails cannot escape the elimination of human progress. image011.jpg The emergence of a new power tool nail gun, its speed is at least ten times that of a hammer, and it can shoot 100 nails per minute, far beyond the efficiency of manpower. And our most common chainsaw uses a two-stroke starter engine. Although it is small, it has a powerful engine that can drive equipment like lawn mowers and motorcycles. When using an electric saw, the operator only needs to pull the rope to start the starter and drive the steel teeth on the saw chain to cut the wood. The advent of these electric tools has revolutionized the construction industry. image012.jpg Of course, in addition to manufacturing work, power tools can also be used to save lives. Power tools can also achieve surgical accuracy. In the past, surgeons switched from major resection to minimally invasive surgery. The doctors need technical support. Technology often means the need for power tools. We all know that surgeons will use surgical blades to make incisions when performing operations. The problem is that such incisions will bleed. Now there is a power tool for surgery. The tip of its needle is heated, and it can cut and coagulate the wound with high temperature like a scalpel. Coagulation means hemostasis, which is very important to the surgeon. It is driven by humans to turn materials into endless high-tech equipment, and inject real power into power tools.
