Two main factors affecting the rapid hydraulic lifting
Time:2019-12-05
Views:1394
The display of the LED advertising car can be optionally equipped with a hydraulic lifting system. Its advantage is that the LED display can be elevated to a high place, so that people in the distance can see clearly, so as to achieve a good publicity effect. Because the LED advertising car uses hydraulic lifting, the speed of lifting directly affects the speed of LED screen lifting, and also affects the overall efficiency.
There are two main factors affecting the rapid hydraulic lifting: the diameter of the cylinder and the flow of hydraulic oil. The speed of hydraulic lifting is inversely proportional to the cross-sectional area of the piston rod of the cylinder, and proportional to the flow of hydraulic oil. When the diameter of the cylinder is fixed, if the hydraulic lifting speed becomes slower, it is necessary to analyze from the angle of hydraulic oil flow.
When the hydraulic lifting speed becomes slow, many people will immediately adjust the relief valve in an attempt to increase the pressure of the hydraulic system to increase the lifting speed. This is actually a very wrong approach. The relief valve is configured to prevent the hydraulic system pressure from being too high and protect the hydraulic system. It is very dangerous that the setting value of the relief valve exceeds the safety value of the hydraulic system design, and increasing the pressure of the hydraulic system cannot increase the speed of hydraulic lifting. Only when the hydraulic lifting belt load cannot be started, the hydraulic system pressure should be checked. If the pressure is lower than the normal range, the overflow valve setting can be adjusted.
Therefore, when the hydraulic lifting speed becomes slow, the factor of hydraulic oil flow should be considered in priority. In addition, the hydraulic pipeline is also a very important sanitation, and the hydraulic pump is also an important factor affecting the flow of hydraulic oil. If the hydraulic pump is used for a long time, it is easy to cause problems. When the hydraulic lifting speed is slow, you should check whether the oil supply flow of the hydraulic pump is stable. If the quality of the hydraulic oil is not good, there will be a lot of impurities, which will also cause clogging and slow down the speed, so keep the hydraulic oil clean.
When the hydraulic lifting speed becomes slow, many people will immediately adjust the relief valve in an attempt to increase the pressure of the hydraulic system to increase the lifting speed. This is actually a very wrong approach. The relief valve is configured to prevent the hydraulic system pressure from being too high and protect the hydraulic system. It is very dangerous that the setting value of the relief valve exceeds the safety value of the hydraulic system design, and increasing the pressure of the hydraulic system cannot increase the speed of hydraulic lifting. Only when the hydraulic lifting belt load cannot be started, the hydraulic system pressure should be checked. If the pressure is lower than the normal range, the overflow valve setting can be adjusted.
Therefore, when the hydraulic lifting speed becomes slow, the factor of hydraulic oil flow should be considered in priority. In addition, the hydraulic pipeline is also a very important sanitation, and the hydraulic pump is also an important factor affecting the flow of hydraulic oil. If the hydraulic pump is used for a long time, it is easy to cause problems. When the hydraulic lifting speed is slow, you should check whether the oil supply flow of the hydraulic pump is stable. If the quality of the hydraulic oil is not good, there will be a lot of impurities, which will also cause clogging and slow down the speed, so keep the hydraulic oil clean.
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