When the center line is left, the stop on the piston rod of the mechanism becomes unobstructed. If the disc spring releases its stored energy, the cymbal rotates clockwise around the set screw, allowing the frog to return to the centerline position, and the stop on the piston rod of the working cylinder becomes engaged. In cases where the circuit breaker cannot be operated normally under low oil pressure, it is necessary to insert the plug into the anti-loss and slow-distribution device to ensure proper operation. This device stores energy and monitors it, closing the pressure release valve to activate the oil pump motor, which then drives the phase plug pump. As a result, hydraulic oil from the low-pressure fuel tank is transferred into the high-pressure oil storage area. During the closing operation, when the disc spring is in the energy-stored state and the working cylinder is connected to the low-pressure fuel tank, it is filled with low-pressure oil. Under the influence of the high-pressure differential, the working cylinder remains safely in the open position. When the closing solenoid valve is energized, the reversing valve shifts to the closing position under the action of high-pressure oil, allowing high-pressure oil to enter the lower part of the working cylinder. With high-pressure oil present above and below the piston, the larger effective area on the bottom of the piston generates sufficient force to move the circuit breaker into the closed position. The damping system activates near the end of the closing process to reduce the impact force, while the hydraulic support force ensures that the piston remains securely in the closed position. Regardless of the operating mode, the pressure in the disc spring device will gradually decrease, causing a change in the amount of compression. At this point, the transmission system will activate the limit switch, triggering the hydraulic pump. As the oil pressure in the high-pressure chamber increases, the pump automatically stops once the rated pressure is reached. As the working cylinder moves downward, it drives the circuit breaker to the closed position. Similarly, during the opening process, the damping system helps reduce the impact force at the end of the movement. However, due to the limited damping capability of the pneumatic mechanism, the impact on the circuit breaker can be severe, leading to potential defects. Therefore, it is recommended that power departments consider replacing the pneumatic mechanisms used in many SF6 circuit breakers in China with hydraulic spring mechanisms. The replacement process is simple and efficient. The anti-loss and slow-distribution function is another advantage of the mechanical linkage between the disc spring device and the anti-loss mechanism. Unlike pneumatic or hydraulic systems, which require additional control methods for the first cylinder and involve complex piping, this design eliminates the need for tubes or connections, reducing the risk of leaks and improving reliability. Outdoor Wall Light,Outdoor Wall Lamp, garden wall light JINGYING , https://www.jingyinglight.com
Research on the construction of a certain type of hydraulic spring
The exterior of the outdoor wall lamp is beautiful, with simple and beautiful lines. Various styles and forms, simple installation and convenient maintenance.