Causes and troubleshooting of slow lifting of elevator in Shandong
1. The diameter of the oil cylinder and the flow of hydraulic oil. The speed of the hydraulic elevator is inversely proportional to the cross-sectional area of the piston rod of the oil cylinder and directly proportional to the flow of hydraulic oil. The diameter of the oil cylinder is fixed. When the speed of the hydraulic elevator slows down, it should be analyzed from the perspective of hydraulic oil flow.
2. When the speed of the hydraulic elevator slows down, many people will immediately adjust the overflow valve in an attempt to increase the speed of the hydraulic elevator by increasing the pressure of the hydraulic system. In fact, this is a very wrong practice. The overflow valve is configured to prevent the pressure of the hydraulic system from being too high and protect the hydraulic system. It is very dangerous for the set value of the overflow valve to exceed the safety value designed by the hydraulic system, Moreover, increasing the pressure of the hydraulic system cannot increase the speed of the hydraulic elevator. Only when the hydraulic elevator cannot be started with load, the pressure of the hydraulic system should be checked. If the pressure is lower than the normal range, the set value of the overflow valve can be adjusted.
3. The hydraulic pipeline is also a very important link. The hydraulic pump is also an important factor affecting the hydraulic oil flow. The hydraulic pump used for a long time is also prone to problems. When the speed of the hydraulic elevator slows down, check whether the oil supply flow of the hydraulic pump is stable.
Therefore, when the speed of the hydraulic elevator slows down, the factor of hydraulic oil flow should also be given priority. In addition, if the quality of the hydraulic oil is poor and there are many impurities, it will also block and slow down, so it is also necessary to keep the hydraulic oil clean.