Hoist winch for the spreader and the gate is connected to the transmission system so that the winch drum around, put the cable through the gears so as to drive a mechanical lift (Figure 2) with a rope or wire rope pulley block, also called fixed rope hoist . It is relatively simple and easy to manufacture structure, easy maintenance and repair, are widely used in various types of gate opening and closing. Hoist winch into twin-lift and two single hanging point. Twin-lift hoist winch is connected to the shaft by two single hanging point hoist winch connected together for synchronous operation hoist, can be made into one side or both sides of the drive drive. Hoist winch usually 一扇 gate hoisting equipment with a screw hoist mounted on top of the tank above the gate of the pier. China has produced and put into operation the hoist winch capacity has been reached: Inception force 6000kN, gate hoist hoist stroke 30m, and Inception force 4000kN, hoist travel 120m. Screw hoist, also known as screw hoist, either directly or through a guided slide, rod and gate connected to the gate leaf with a threaded rod, move to Gate of mechanical screw down. With the extensive development of hydropower projects, irrigation reservoirs hoist river dams for hydro power plants and other projects on the gate was widely adopted. Its installation and use and maintenance of technical knowledge should also be vigorously promoted. For the construction and installation of the units and the use of administrative departments, should popularize the technology and knowledge to ensure the quality of the project can only play project benefits. Before installation, be sure to check the parts is good, whether on foot lubricants, loose bolts, whether its relevant technical data match. When installing, be sure to keep the plane level foundation arranged 180 °; the contact area hoist the base and foundation layout plane to reach more than 90%; screw axis to be perpendicular to the horizontal beam gate stage; To coincide with the vertical ram lug holes avoid screw tilt, causing local stress and mechanical damage. After installation, be sure to make the test run, a hoist for the no-load test, which allows the screw to make two stroke, listen to any abnormal sound, detect the installation meets the technical requirements. Second, as a load test at rated load, as the two travel to observe the operation of the screw and the gate, whether the abnormal phenomenon. After confirmation, before the official run. After the load operation for some time, the need for maintenance for the first time, the new mechanical friction inside the machine produced metal foam especially screws, nuts, turbine, vortex rods to light clean, greased, sealed tight, and continue to use. Hoist gate _ rich students (certified) _ Foshan hoist provided by the Guangzhou Environmental Protection Engineering Co., rich students. Environmental Protection Engineering Co., Ltd. Guangzhou Fu students (www.fushengyuan.com) is a leader in Guangzhou, environmental monitoring equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Students in rich leadership with the staff warmly welcome all inquiries negotiations to create a better future for rich students.