Every day people, sometimes without noticing it, use hydraulic tools. What is this? This is a manually used special mechanism that helps to significantly speed up and facilitate various types of tasks. Each of us, one way or another, faced with such a device. The secret is that the mechanism of operation of human hydraulic assistants was created according to this principle: the simpler, the more reliable.
Where you can see the work of such devices
In addition to jacks working on the same principle, the operation of a hydraulic tool can be seen in the rescuers of the Ministry of Emergencies, special forces, firefighters. In the case of road traffic accidents, the fate of many people depends on how quickly a person is rescued from a damaged car. Rescuers, making the release of people from the "iron captivity", actively use hydraulic tools.
Working on the same principle, the press allows you to deform the metal parts of the car. Hydraulic scissors cut metal car roof racks and many other iron parts with sufficient ease. Such a tool does not emit sparks when working with metal, excludes sharp blows to the material and the spread of metal fragments. Work safety is the most important requirement when carrying out this kind of work. Tools that work on a different principle do not guarantee the proper level of security.
Firefighters, in order to access enclosed spaces where there is a fire, are sometimes forced to “bite” lock shackles, door hinges, and window bars with the help of hand tools with a hydraulic drive. Visual operation of a hydraulically driven mechanism can be observe the operation of an excavator, bulldozer, tractor, truck crane, etc.
Hydraulic tool photo and description
This example makes it easy to understand the advantages, disadvantages and distinctive features of various hand tools. For example, a hydraulic car jack, with its small size, is capable of lifting a multi-ton weight. Such a device has a long service life, low maintenance and reliability.
The only disadvantage of such a jack is its weight, which stands out against the background of alternative mechanisms that perform the same function. Of course, there are light, compact and more affordableoptions, but none of them will be able to lift more weight than its hydraulic competitor. And they are unlikely to work as much.
What tools are used in production
The tool with hydraulic drive is actively used in small business and industrial enterprises today. There are many types, types and purposes of hydraulically driven mechanisms. We list some of them:
- The hydraulic press, by creating incredible pressure, allows you to stamp metal parts. It is used in various fields: automotive, aircraft, shipbuilding and many others.
- The hydraulic puller allows you to carefully separate components and assemblies. For example, remove the bearing from the metal shaft.
- Hydraulic rail bender gives rails the right degree where needed.
- The hydraulic pipe bender also provides the necessary position for metal pipes.
This is not a complete list of tools that have a hydraulic principle of operation. In so many areas, they simply cannot be dispensed with by other means.
History of hydraulically driven mechanisms
The history of the creation of hydraulic tools goes far into the past. According to a similar principle, for example, in those days, water pumps worked to eliminate fires. As a single mechanism that combines in its design the presence of a hydraulic motor, a pump and a fluid distribution system, such a toolapplies only to the last two centuries.
The first patented device that worked as a complete hydraulic mechanism was invented in 1795. The English inventor Joseph Brahm worked on its creation. Two years after receiving the patent, the first ever hydraulic press was introduced to the world.
Operation principle
The principle of operation of hydraulic mechanisms is two cylinders of different diameters. Each of them has a piston corresponding to the diameter of the cylinder. It is filled with some kind of liquid. It can be oil or water. By pumping fluid from one cylinder to another, hydraulic energy is converted into mechanical action. The resulting mechanical force has a very effective value and is directed to perform the necessary actions.
Repair and maintenance
Every hydraulic tool needs periodic maintenance and repair work. All manipulations must be carried out by persons who have the necessary qualifications for this. Maintenance includes periodic inspection of the condition of the tool, changing the working fluid, checking its operation and safety.
Repair of hydraulic tools is carried out in case of replacement of components of the mechanism, pistons, valves, bushings, hoses and so on. For continuous and safe operation of hydraulic mechanisms, the cleanliness of the fluid in the mechanism andnecessary sealing of working units. Given the difficult conditions in which the attachment is used, safety precautions when working with hydraulic tools must be observed. It is important to notice the signs that the instrument needs to be repaired in time. Such a sign may be fluid leaks on the nodes of the device or a decrease in its effectiveness.
Conclusion
In our time, a hydraulic tool helps to solve many complex problems in various areas of human life. Due to its safety, the use is in demand in places where there is a fire hazardous environment, during underwater work. The hydraulic mechanism, once created and proved to be a reliable assistant, has firmly entered the life of a person. Every year the scope of its application is expanding. And only the principle of work, demonstrating excellent results, remains the same.
