The action of an extensive group of mechanical power equipment is based on the function of hydraulic cylinders. In a way, we get a drive system that implements a duty cycle at minimal cost. Units in which such nodes are integrated are used in industry, construction, as well as in private farms. The hydraulic cylinder for the press, which exerts pressure on a particular material, was widely used. This can be a recycling machine, and matrix devices in industry, and production lines that seal preform mixtures.
Design and principle of operation
The essence of any hydraulic machine is based on the pressure exerted by the fluid on the piston that is located in the cylinder. The metal rod of the hydraulic cylinder provides cyclic operation of the unit, transmitting the working moment to the final recipient of energy. In the case of the press, the result of the working moment will be the force pressure supplied to the sealing platform. For example, massive pressing panels in waste machines provide compact tamping of waste paper, metal and other waste.
Special attention should be paid to the site of the effort. As already noted, pressure is generated by supplying fluid to the piston. Normal water can also act as an active substance, but specialized systems use specialized oil in powerful systems. In this case, the hydraulic cylinder can be driven by manual force and by an electric motor that automatically pumps pressure through the fluid.
Varieties of aggregates
Two variants of hydraulic cylinders are common. These are two- and one-sided units with fundamental operational differences. Bilateral mechanisms are considered more effective and functional, in which the piston moves in both directions by the liquid. This is a complex hydraulic cylinder that interacts with a plumbing line to drain and renew water or oil. Accordingly, one-way hydraulics can be considered as a simpler mechanism. In this case, the fluid creates only one-way force, after which the piston returns to its place with special devices - usually springs.
Main characteristics
Technical and operational parameters in relation to cylinder hydraulic units can be divided into two groups - providing power potential and structural. The main characteristic that defines a hydraulic cylinder in terms of efficiency is its power load. Pressure varies from 2 to 50 tons. Minimum load values of up to 10 tons are able to provide single-sided units, and above - double-sided.
In terms of structural values, it is important to consider the stroke of the stem and its diameter. The average stroke is 150-400 mm, and the diameter is about 40 mm. This data does not have much significance in terms of performance, if the effort initially meets the load requirements, but it is important to consider it to ensure the possibility of subsequent integration into the working complex. For example, hydraulic power cylinders with a large stroke may not be suitable for a modest-sized waste processing station. Conversely, when equipping an industrial lifting machine, it makes no sense to look for a compact cylinder, since with a higher probability such a model will not be able to provide sufficient effort.
Hydraulic cylinder manufacturers
High-quality cylinders for various needs are produced under the brands Ombra, JTC, Trommelberg, etc. In the families of these companies you can find units for equipping small auto repair shops, and industrial plants that create tens of tons of force. Also on the domestic market are widely represented models of the Sorokin enterprise in various modifications. At the same time, a Russian hydraulic cylinder will cost less, but will provide the same operational effect. Another thing is that the company, rather, focuses on the lower and middle segments - mainly hydraulic cylinders with a load of about 10 tons. However, restrictions on the strength of the impact are compensated by structural flexibility. Such mechanisms can be used both as an independent functional apparatus, and as equipment in larger production machines.
Additional equipment
Additional equipment for hydraulic cylinders is devices for optimizing control, lighting equipment, as well as security systems. The choice of a device is determined by the operating conditions of the mechanism. Often, LED lights are purchased, thanks to which the equipment can be operated at any time of the day. In addition, the presence of a protected backlight may be required in case an unscheduled repair of hydraulic cylinders is planned, which often involves adjustment operations with the connection of pumps or spring correction. In more complex designs, electronic control panels are often used, which automatically control the supply of working fluid to the pump group of the hydraulic system.
Conclusion
The operability of lifting pressing mechanisms is largely determined by the action of pistons that drive the functional components. Productivity, in turn, directly determines the hydraulic cylinder for the press and its technical parameters. As a rule, the larger the rod, the higher the efficiency of the system. Accordingly, for servicing large machines, dimensional cylinders are purchased that can not only set the pressing platform in motion, but also exert sufficient force through it. In addition to the load itself, the quality of the hydraulic function is also determined by the operation algorithm, which will already depend on the nature of the connection and the interaction of the cylinder with the rod.