Greenhouse shading net is to add a layer of shading net on the top or inside of the greenhouse to prevent part of the sun panels from entering the inside of the greenhouse. Greenhouse shading nets can block sunlight and reduce the temperature inside the greenhouse. According to the installation position of the sunshade net in the greenhouse, the material of the sunshade net and the shading light rate, the cooling effect achieved inside the greenhouse is 3 to 6 degrees Celsius. At present, greenhouse shading nets have been used in agricultural production for many years. Today we will introduce the system composition and working principle of greenhouse shading nets.
1. The composition of the sunshade system of the greenhouse
The main equipment of the system includes geared motors, drive shafts, drive shafts, rack and pinion gears, support hanging wheels, drive side profiles, and curtain lines.
The geared motor is composed of a motor part and a transmission. The conventional motor power is 0.75kw; the speed is 5.2r/min and the torque is 600n/m. The stroke of the rack and pinion is generally 3.8 meters, so the single time for opening or closing the shading net is about 6 to 8 minutes.
curtain line, also called polyester ester curtain line, has been widely used in agriculture. Its products are mainly black and transparent in two colors: black curtain wire can be used as a support line in vineyards, and it is a substitute for iron wire and steel wire. It can also be used in greenhouse outdoor curtain systems and outdoor awnings, as a supporting film line. use. The transparent color support curtain line is used as a substitute for some indoor metal structures. The curtain wire has the characteristics of high strength, antistatic, flame retardant, not easy to break, smooth surface, acid and alkali resistance, UV radiation resistance, weather resistance, etc., so it has a long service life. In the greenhouse project, the outer shading system of the large shed chooses the black curtain line, and the inner shading system chooses the transparent color curtain line.
2. The working principle of the sunshade system
Its working process is to start to rotate and drive the drive rod after the motor receives the instruction. The drive rod transmits the force to the rack through the gear, and the rack and the transmission rod are integrated. The rack pushes the drive card to work, and the sunshade net is fixed on the drive card to achieve the purpose of stretching and closing.
3.The advantages of using the greenhouse shading system
The greenhouse can prevent the seedlings from burning by shielding the sun, and at the same time can effectively reduce the temperature inside the greenhouse. Opening the sunshade net in the hot summer can also delay the service life of the film or the sun board.
