Every day people, sometimes not noticing it themselves, use a hydraulic tool. 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, came across such a device. The secret is that the mechanism of operation of human hydraulic assistants is created according to this principle: the simpler - the more reliable.
Where can I see the work of such devices
In addition to jacks working on the same principle, the operation of a hydraulic tool can be seen at the rescuers of the Ministry of Emergencies, special forces, and firefighters. In the case of traffic accidents, the fate of many people depends on how quickly a person will be rescued from a damaged car. Rescuers, making the release of people from the “iron captivity”, are actively using hydraulic tools.
Working on the same principle, the press allows you to deform the metal parts of the car. With hydraulic scissors, metal racks of the car roof and many other iron parts can be easily cut off. Such a tool does not emit sparks when working with metal, eliminates sharp impacts on the material and the expansion 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, for access to enclosed spaces where there is a fire, are sometimes forced to “bite” the lock arches, door hinges, window grilles using a hydraulic hand tool.
The visual operation of the mechanism with a hydraulic drive can be observed in the operation of an excavator, bulldozer, tractor, truck crane, etc.
Hydraulic tool: photo and description
With this example, you can easily understand the advantages, disadvantages and distinguishing features of various hand tools. For example, a hydraulic car jack, with its small size, is able to lift multi-ton weight. Such a device has a long service life, is unpretentious in maintenance and is reliable.
The only drawback of such a jack is its weight, which stands out strongly against the background of alternative mechanisms that perform the same function. Of course, there are lightweight, compact and more affordable options, but not one of them can lift more weight than its hydraulic competitor. And to work out the same amount with them is unlikely to succeed.
What tools are used in production
Tools with hydraulic drives are now actively used in small businesses and industrial enterprises. There are many types, types and purposes of hydraulic mechanisms. We list some of them:
- Hydraulic press by creating incredible pressure allows stamping metal parts. It is used in various fields: automotive, aircraft, shipbuilding and many others.
- The hydraulic puller allows you to accurately disconnect the components and components. For example, remove the bearing from a metal shaft.
- The hydraulic rail bender gives the rails the required degree where necessary.
- 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 the creation of mechanisms with hydraulic drive
The history of hydraulic tools is a thing of the past. According to a similar principle, for example, in those days water pumps worked to eliminate fires. As a single mechanism, combining in its design the presence of a hydraulic motor, a pump and a liquid distribution system, such a tool has been used only for the last two centuries.
The first patented device, working as a full-fledged hydraulic mechanism, was invented in 1795. An English inventor Joseph Bram worked on its creation. Two years after receiving the patent, the world's first hydraulic press was introduced to the world.
Operating principle
The principle of operation of hydraulic mechanisms is two different in diameter cylinder. In each of them there is a piston corresponding to the diameter of the cylinder. Its filling is carried out by any 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 service
Any hydraulic tool needs periodic maintenance and repair work. All manipulations should be carried out by persons with the necessary qualifications. Maintenance includes periodic inspection of the condition of the tool, replacement of the working fluid, checking its operability and safety.
Repair of a hydraulic tool is carried out in case of replacement of the components of the mechanism, pistons, valves, bushings, hoses and so on. For long-term and safe operation of hydraulic mechanisms, the purity of the fluid in the mechanism and the necessary sealing of the working units are important. Given the difficult conditions in which the device is used, safety precautions when working with hydraulic tools must be followed. It is important to notice the signs that the tool needs repair in time. Such a sign may be fluid smudges on the nodes of the device or a decrease in its effectiveness.
Conclusion
Nowadays, a hydraulic tool helps to solve many complex problems in various spheres of human life. Due to its safety, the application is in demand in places where there is a fire hazardous environment during underwater operations. The hydraulic mechanism, once created and proved to be a reliable assistant, firmly entered the life of man. The scope of its application is expanding every year. And only the principle of operation, showing excellent results, remains the same.