Release Time: 2020-11-16
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After calculation, the distance from the starting position of the loader to the position of the truck with full load is shortened from 100% to 80% of the length of the loader's fuselage.
The workload per unit time can be increased by 17% and fuel consumption can be reduced by 16%. Therefore, when the loader loads the truck, the truck should be as close to the loader as possible to shorten the loader's transportation distance.
When the loader bucket is inserted into the material pile and the material is stripped, the insertion resistance is relatively large. The first gear should be selected during the shoveling process, and the shoveling can be completed with a relatively small throttle.
When the throttle is low, the diesel engine speed is low, not only the fuel consumption is low, but also the hydraulic system of the working device has a small flow rate and less overflow loss, thereby further reducing the diesel engine fuel consumption.
For example, when using a loader equipped with a ZF4WG200 transmission for shoveling operations, start with gear II; insert the bucket into the stockpile and press the KD button to lower the gear to gear I and complete the shoveling operation with a lower throttle.
If the second gear is used to complete the whole process of shovel loading operations, the throttle will increase and fuel consumption will increase. The timing of shifting when the loader is loaded is shown in the figure.
When the loader bucket is inserted into the pile and stripped of materials, it may be difficult to insert and strip due to the hardness of the materials.
Even if the diesel engine throttle is increased, the forward speed of the loader is still zero. This phenomenon is called torque converter stall.
When the torque converter stalls, the diesel engine's fuel consumption is very high. All the energy generated by the diesel engine is absorbed by the torque converter and converted into heat, and dissipated into the atmosphere through the torque converter oil radiator.
At this time, the operating efficiency of the loader is zero.
During the shoveling process of the loader, when the shoveling load is too large, even if the bucket operating handle is always pulled, the bucket cannot shovel.
At this time, the hydraulic system pressure reaches the set pressure of the overflow valve, the overflow valve opens, and the hydraulic oil flows back to the hydraulic oil tank.
This phenomenon is called hydraulic stall. At this time, the fuel consumption of the diesel engine is very high, but the operating efficiency is zero.
All the energy generated by the diesel engine is converted into heat through the hydraulic system and radiated to the atmosphere through the hydraulic oil radiator.
During the full-load lifting process of the loader, the higher the bucket lift, the more energy it consumes and the higher the fuel consumption.
The lifting height of the bucket of the loader should be controlled according to the actual height of the truck fence to avoid excessive lifting, which may cause a waste of fuel and time.