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How To Effectively Reduce The Energy Loss Of Scraper Winches


Any machine will have energy loss when working, and the scraper winch is no exception. Although we cannot completely eliminate the loss, we can effectively reduce its loss.

The power loss of the hydraulic system of the scraper winch will cause energy loss on the one hand and reduce the overall efficiency of the system. On the other hand, the lost part of the energy will be converted into heat energy, which will increase the temperature of the hydraulic oil and the oil. Deterioration, resulting in failure of hydraulic equipment.

First, from the perspective of the power source-the pump, considering the diversification of the working conditions of the actuator, sometimes the system requires large flow and low pressure; sometimes it requires small flow and high pressure. Therefore, it is appropriate to choose a pressure-limited variable pump, because the flow rate of this type of pump changes with the change of system pressure. When the system pressure is reduced, the flow rate is relatively large, which can meet the fast stroke of the actuator. When the system pressure increases, the flow rate decreases accordingly, which can meet the working stroke of the actuator. This can not only meet the working requirements of the actuator, but also make the power consumption more reasonable.

How To Effectively Reduce The Energy Loss Of Scraper Winches?

Secondly, if the actuator has speed control requirements, then when selecting the speed control circuit, it is necessary to meet the speed control requirements while reducing power loss as much as possible. Common speed control circuits are: throttle speed control circuit, volume speed control circuit, volume throttle speed control circuit. Among them, the power loss of the throttle flow circuit is large, and the stability at low speed is good. The volume speed control circuit has neither overflow loss nor throttle loss, high efficiency, but poor stability at low speed. If you want to meet both requirements at the same time, you can use a volumetric throttle speed control circuit composed of a differential pressure variable pump and a throttle valve and make the pressure difference across the throttle valve as small as possible to reduce pressure loss.

Third, there is inevitably pressure loss and flow loss when hydraulic oil flows through various hydraulic valves. This part of energy loss accounts for a large proportion of all energy losses. Therefore, a reasonable choice of hydraulics, adjusting the pressure of the pressure valve is also an important aspect of reducing power loss. The flow valve is selected according to the flow adjustment range in the system and ensures that its minimum stable flow can meet the requirements of use. When the pressure of the pressure valve meets the normal operation of the hydraulic equipment, try to take the lower pressure.

Fourth, reasonable choice of hydraulic oil. When the hydraulic oil flows in the pipeline, it will show viscosity, and when the viscosity is too high, it will generate a large internal friction force, causing the oil to heat up, and increasing the resistance when the oil flows. When the viscosity is too low, it is easy to cause leakage, which will reduce the volumetric efficiency of the system. Therefore, generally choose an oil with appropriate viscosity and good viscosity-temperature characteristics. In addition, when the oil flows in the pipeline, there are pressure losses and partial pressure losses along the way. Therefore, when designing the pipeline, the pipeline should be shortened as much as possible, and the elbows should be reduced at the same time. The design of the hydraulic station is only considered from the aspect of reducing the power loss of the hydraulic system. When designing a hydraulic system, it is necessary to comprehensively consider the requirements of other aspects.

How many of the above aspects have you effectively reduced the energy loss of the scraper winch? For more professional questions about scraper winches, please feel free to leave us an online message! !