Automatic quick leveling hydraulic control circuit of down-the-hole drill and control method thereof
A technology for automatic leveling and down-the-hole drilling rigs, which is applied to drilling equipment, earthwork drilling, mechanical equipment, etc., can solve the problems of increasing auxiliary operation time, large operation difficulty, misoperation risk, and large leveling error, so as to reduce auxiliary operation time. Working time, improving the overall efficiency of drilling, and reducing the effect of leveling impact
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[0030] Example: such as figure 1 As shown, the hydraulic control circuit consists of load sensitive variable pump 2, pilot oil pump 8, hydraulic control proportional reversing valve with load feedback 3, electromagnetic reversing valve group 4, outrigger balance valve 5, outrigger cylinder group 6, pilot control The valve block 9, the electric proportional pressure reducing valve 10 and the pressure switch 7 are composed.
[0031] The relationship between the electrification sequence of the electromagnets in the electromagnetic reversing valve group 4 and the inclination angles of the X and Y axes is as follows:
[0032] 1) If there is an inclination angle in the positive direction of the X-axis, the electromagnets DT5 and DT9 are energized to control the left rear outrigger 12 and the right rear outrigger 14;
[0033] 2) If there is an inclination angle in the negative direction of the X axis, the electromagnets DT3 and DT7 are energized to control the left front outrigger 1...
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