2010-02-12
The purpose of checking the deviation of excavator walking trajectory is to measure the maximum trajectory deviation of the straight line between the starting and ending points of the walking trajectory, in order to check the performance balance of the walking device system (from the main pump to the walking motor) on both sides. withKomatsu 200-6For the test object, let it walk 20 meters. If the measurement is conducted on a concrete road surface, the trajectory deviation tends to decrease.
preparation:
1. Adjust the sag of the tracks to make the two tracks consistent.
2. Prepare a flat and sturdy test road with a length of 20 meters, and an additional 3-5 meters at both ends for acceleration and deceleration.
3. Keep the bucket at a height of 0.3-0.5 meters above the ground, and flip both the bucket and the forearm in.
4. Keep the temperature of the hydraulic oil at 50 ± 5 ° C (122 ± T)
Testing:
1. Measure the trajectory deviation at high and low walking speeds.
2. Select the position of the following switches: Engine control dial: Maximum position
E-mode switch: OFF
HP mode switch: OFF
Work mode selector: General purpose mode
Automatic slow switch: OFF
3.excavating machineryStart walking from the acceleration zone and push the walking control lever to the full stroke
4. Measure the maximum distance between a 20 meter straight string and the trajectory of the machine.
After measuring the trajectory of the forward movement, rotate the upper rotating platform 180 degrees;! Measure the trajectory of walking backwards.
Repeat steps 3-5 three times and calculate the average value.
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