Hydraulic cylinder for greenhouses with their hands

The Cultivation of crops in the heifer gives a lot of advantages vacationers, saving him from many troubles. Heat-loving plants protect from harmful environmental influences, evolving in optimal conditions. Design and materials for modern greenhouses create the most comfortable humidity and temperature conditions for growth, however the full provision of a favourable environment is not possible without ventilation. To resolve this issue help the cylinders for window greenhouses that operate automatically and independently of man. The presence of such a device makes the operation of cottage construction convenient and efficient from the point of view of a decent environmentally friendly crop.

Working Principle of hydraulic cylinder

A Classic example of the greenhouse cylinder – this factory is an automatic system that provides ventilation inside the structure. The operation of this device is based on the movement of the piston, which aktiviziruyutsya as a result of expansion of the liquid in the cylinder under the action of solar heat. In the process of lowering the temperature of the cylinder for greenhouses the window closes, as the fluid takes the initial state with smaller volume. Such devices are versatile, but they will have to pay.

In addition, there are custom designs of greenhouses, which require machines with special characteristics. For example, if you want to ensure the rise of massive vents in the greenhouse, it will require a more powerful hydraulic cylinder for greenhouses, which is better to do with their hands. Designing such devices, it is possible to make various additions. In particular, glued the foil increases the speed of heating of the device that speeds up the process of opening the box. Conversely, if you turn sensitive to the sun element of the reverse side (without foil), it will take more time to achieve the activation system.

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What do the cylinder?

For this purpose typically use pneumatic shock absorber from the vehicle, which is mounted on the hood or the back door. Special requirements for technical condition of the mechanism are not required – main, that it was pressure. You can check this by running stock. Even the hydraulic cylinder to the greenhouse of the shock from the old car is able to last for several years, which is a good result, considering the intensity of exploitation.

At the end of the cylinder it is necessary to trim the ball so that there is as much length of the holder. Then the cylinder is clamped using the vise, but it should be done through the ends of itself to a work item are not damaged. Securely fixed in the cylinder is done drill a 3mm hole. At the time of formation of holes in the stump under pressure will leave the air. There may be a small "puff" and there is a risk of swarf in the eye – in this case it is necessary initially to prepare goggles or face shield. After threading the cylinder in hemp for fiber is ready. Next on the stump formed thread. As can be seen, all operations are carried out exclusively with the outer surfaces of the absorber, so there is no need to penetrate into its internal structure.

Reservoir for hydraulic cylinder

The cylinder must be provided and the presence of the fluid reservoir. This part is also recommended to make car parts. In this case of cardan, who cut the so-called ears. Bleed need to produce strictly according to the estimated length for particular greenhouse, and then brew the end. At the other end produced two holes. First serve for the connection, and the second to provide a convenient venting. The most difficult step, which is manufactured hydraulic cylinder for the greenhouse of the shock with your hands, this thread. Moreover, it is important not the severity of this procedure, and the responsibility – any violation of symmetry may make the item unsuitable for further use. Parameters for the calculation are as follows: length is 80 cm and a diameter of – 7 cm Total volume reaches 3 litres. If you are using a larger reservoir volume, it is desirable to fill the extra space with metal elements.

Connecting hose and the spring

As a connecting element of the system you can use automotive brake hose. Again, particular requirements are not required – it is important that the threads came together. Depending on the characteristics of the hose is cut a corresponding thread on the reservoir and the cylinder. Optimal parameters – the height of 1 cm with a pitch of about 1.25 cm Homemade hydraulic cylinders for ventilation of greenhouses of shock absorbers capable of withstanding a load of 100 kilograms, it will suffice not only for maintenance vents, but also on the entire structure of the greenhouse. The only problem is that self-return stock to its original position impossible – the system draws air through the seals. Therefore, the need spring, especially if the transom is underweight.

The Spring should handle weighing at least 5 kg to the stock performed back pressure. Since the balance sheet of the transom is adjustable in weight, it is possible to use a standard door spring. With its help it is possible to service several sections with parameters 1x2 m. To simplify the design, the vents are combined into a single system, which will provide a hydraulic cylinder for greenhouses with sufficient traction. The sash themselves, it is desirable to design so that the ventilation was carried out with the top because this side is going to the hot air.

What liquid to use?

A hydraulic cylinder is suitable For any liquid, but the best option would be oil. Many people mistakenly believe that alcohol or increase the efficiency of the mechanism, but in fact it is not. It is quite usual motor oil, including testing of the engine. The simplest hydraulic cylinder for greenhouses with their hands can fill and wash composition. If at hand was not the appropriate liquid and you have to go to the store, the oil a tool like the M8 will fit in price and performance.

Assembly cylinder

When all the elements are prepared separately, it is possible to begin to assemble. In the first place using a medical syringe in the shock absorber is filled with liquid. You can use a funnel, adding oil to the brim. Then you need to give out the bubbles with the air outside – this will occur within a few hours. Further, the hydraulic cylinder for greenhouses connected with the hose by tightening. The stem is pressed so that the oil came through the hose and released the air. From the point of view of structural appropriateness, the air must not remain in the device, but without the bubbles it is better not to leave the system, otherwise there is a risk of rupture of the cylinder. The air will function as a damper and shrink as stock extensions.

Installing a cylinder

In the installation there is nothing complicated, but the process is individual. Much will depend on the number and parameters of the air vents, and the design of the structure. If the hydraulic cylinder for greenhouses with their hands were made strictly to the dimensions of a particular window for ventilation, no problems. Main – to find a reference point and she can open the frame for the hydraulic cylinder. The tank must have direct access to the sun, otherwise the mechanism will not work.

Setup of a hydraulic cylinder

For optimal adjustment of the device must be attributed to the place of operation, to await the heating of the tank under the sun and drain the excess oil. Therefore adjust the hydraulic cylinder for greenhouses for use in the construction of the sash with a certain mass. Pre-calculate the load does not work, so the configuration is already in practice in fact use. If pressure is insufficient, then the air is released and again topped the liquid, but if it lasts in excess of, on the contrary, the oil is drained.