CN102927071B - Hydraulic anti-jamming control system of drilling and loading machine - Google Patents
Hydraulic anti-jamming control system of drilling and loading machine Download PDFInfo
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- CN102927071B CN102927071B CN201210455289.7A CN201210455289A CN102927071B CN 102927071 B CN102927071 B CN 102927071B CN 201210455289 A CN201210455289 A CN 201210455289A CN 102927071 B CN102927071 B CN 102927071B
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- 238000005553 drilling Methods 0.000 title abstract description 5
- 239000002828 fuel tank Substances 0.000 claims description 36
- 230000009467 reduction Effects 0.000 claims description 17
- 239000000945 filler Substances 0.000 claims description 15
- 230000006837 decompression Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008439 repair process Effects 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a hydraulic anti-jamming control system of a drilling and loading machine, which comprises a plunger pump, a multi-way reversing valve, a pilot oil source valve bank, a pilot oil control valve bank, an anti-jamming valve bank, a thrust cylinder, an impactor and a drill rotation motor, wherein the plunger pump is connected with the plunger pump through a pipeline; the oil outlet of the plunger pump is respectively connected with the multi-way reversing valve and the pilot oil source valve group, and the oil return ports of the multi-way reversing valve and the pilot oil source valve group are connected with an oil tank through a cooler; the first joint of the multi-way reversing valve is connected with an anti-jamming valve bank, and the anti-jamming valve bank is connected with the propulsion oil cylinder through a balance valve bank; the second joint of the multi-way reversing valve is connected with the impactor; and a third link of the multi-way reversing valve is connected with the drill rod rotating motor. The hydraulic anti-jamming control system of the drilling and loading machine can set multi-stage propelling and impact pressures so as to adapt to different geological conditions and effectively realize active anti-jamming; and the control system can control the impacter and the propulsion oil cylinder to shift to the light impact and light push operation during drill rod clamping, so as to repair the drilled hole and effectively improve the effect of drill rod clamping prevention.
Description
Technical field
Patent of the present invention relates to mining comprehensive heading equipment technical field, particularly a kind of mining drill hydraulic pressure anti-sticking pricker control system of installing.
Background technique
Drill loader be a kind of collect boring, hoeing, be transported in one comprehensive heading equipment, be mainly used in the driving of hard rock roadway with small cross-section in China's coal-mine, also can be used for the excavation work of the departments such as metallurgy, railway, highway, water power, application prospect is very wide.Drill loader is primarily of compositions such as rake dress portion, rig portion, feeding funnel, running part, framework portion, supporting portion, fortune portions.
Drill loader mainly adopts all-hydraulic rock drilling mode, and because the work under bad environment of drill loader, operating mode are complicated and changeable, in rock drilling boring procedure, card pricker phenomenon easily occurs, card pricker is very unfavorable for the bore operation of drill loader.Once there is card pricker, just need take a long time process by the bore bit of card and drill steel, affect bore operation efficiency, and in many cases, there is more difficult eliminating after card pricker, can only abandon and creep into drill steel in hole and bore bit, again perforate, this will increase the cost of bore operation.The anti-sticking pricker control system of current drill loader is fairly simple, only has and adopts the mode controlling propelling cylinder retrogressing to carry out anti-sticking pricker, be difficult to the card pricker operating mode of precaution and treatment complexity during card pricker.
Summary of the invention
In view of this, the object of this invention is to provide a kind of drill loader hydraulic pressure anti-sticking pricker control system, its better precaution and treatment card pricker situation, with the defect that the anti-sticking function solving the existence of existing anti-sticking pricker control system is poor.The object of the invention is achieved through the following technical solutions:
Drill loader hydraulic pressure anti-sticking pricker control system of the present invention, comprise fuel tank, plunger pump, multiple directional control valve, guide oil source valve group, guide oil control valve group, Hydraulic guide control valve, Hydraulic guide control control valve unit, anti-sticking pricker valve group, equilibrium valve group, propelling cylinder, impactor and pricker and turn motor
The oil outlet of described plunger pump is connected with multiple directional control valve and guide oil source valve group respectively, and multiple directional control valve is connected with fuel tank through cooler with the return opening of guide oil source valve group;
The P2 mouth of described guide oil source valve group is connected with Hydraulic guide control valve and Hydraulic guide control control valve unit, Hydraulic guide control valve is connected with fuel tank with the return opening of Hydraulic guide control control valve unit, the a2 ' of described Hydraulic guide control control valve unit, the a2 ' of b2 ' mouth and pilot-actuated valve group, b2 ' mouth connects, the b1 mouth of Hydraulic guide control control valve unit is connected with the b1 mouth of multiple directional control valve, the a1 of described pilot-actuated valve group, a2, the a1 of b2 mouth and multiple directional control valve, a2, b2 mouth connects, the k1 of pilot-actuated valve group, the k1 of k2 mouth and anti-sticking pricker valve group, k2 mouth connects, the B3 of described multiple directional control valve the 3rd, M4 mouth respectively with the k3 of anti-sticking pricker valve group, k4 mouth connects,
Described drill loader hydraulic pressure anti-sticking pricker control system also comprises the first pressure gauge detecting outlet of plunger pump oil pressure, the second pressure gauge detecting guide oil source valve group outlet oil pressure, detects the 3rd pressure gauge of propelling cylinder pressure, detection pricker turns the 4th pressure gauge of motor reversal pressure and detect the 5th pressure gauge of impactor pressure;
A1, B1 mouth of described multiple directional control valve first is connected with A1, B1 mouth of anti-sticking pricker valve group, and A1 ', the B1 ' mouth of anti-sticking pricker valve group are connected with equilibrium valve group, and equilibrium valve group is connected with propelling cylinder; The B1 mouth of described multiple directional control valve second is connected with impactor, and the A1 mouth of multiple directional control valve second is closed, and the return opening of impactor is connected with fuel tank; Described multiple directional control valve the 3rd A3, B3 mouth turn motor with pricker and be connected, the Leakage Energy outlet that pricker turns motor is connected with fuel tank.
Further, described multiple directional control valve comprises safety valve, the first main control valve, the second main control valve, the 3rd main control valve, the first compensator, the second compensator, the 3rd compensator, a LS relief valve, the 2nd LS relief valve, the 3rd LS relief valve, the 4th LS relief valve, the first shuttle valve, the second shuttle valve, the 3rd shuttle valve, the first overload oil compensating valve, the second overload oil compensating valve, the 3rd overload oil compensating valve, the 4th overload oil compensating valve, the 5th overload oil compensating valve and the 6th overload oil compensating valve, and three main control valve Median Functions of described multiple directional control valve are Y type; The A1 oil circuit of described multiple directional control valve first is with a LS relief valve and the 6th overload oil compensating valve, and the B1 oil circuit of described multiple directional control valve first is with the 2nd LS relief valve and the 5th overload oil compensating valve; A2, B2 oil circuit of described multiple directional control valve second shares the 3rd LS relief valve, and the B2 oil circuit of described multiple directional control valve second is with the 3rd overload oil compensating valve, and the A2 oil circuit of described multiple directional control valve second is closed; A3, B3 oil circuit of described multiple directional control valve the 3rd shares the 4th LS relief valve, and A3, B3 oil circuit of described multiple directional control valve the 3rd is respectively with the first overload oil compensating valve and the second overload oil compensating valve.
Further, described guide oil source valve group comprises decompression relief valve, the first one-way valve and accumulator, the output high pressure oil of described plunger pump is connected with the P2 mouth of accumulator and guide oil source valve group after individual event valve respectively through the P1 mouth of guide oil source valve group, decompression relief valve successively, and the return opening of described decompression relief valve is connected with fuel tank with leakage hydraulic fluid port.
Further, described guide oil control valve group comprises directional control valve, two-bit triplet hydraulic control valve and the 4th shuttle valve, a2 ' the mouth of guide oil control valve group is connected with a filler opening of the 4th shuttle valve, the b2 ' of guide oil control valve group is connected with k2 mouth another filler opening with the 4th shuttle valve, the oil outlet of the 4th shuttle valve is connected with the a1 mouth of guide oil control valve group and the G1 mouth of two-bit triplet hydraulic control valve simultaneously, the T1 mouth of two-bit triplet hydraulic control valve, the T2 mouth of directional control valve is connected with fuel tank with the a2 mouth of guide oil control valve group, the N1 mouth of two-bit triplet hydraulic control valve is connected with the b2 mouth of guide oil control valve group, the N2 mouth of directional control valve is connected with the control oil pocket of two-bit triplet hydraulic control valve, the G2 mouth of directional control valve is connected with the k1 mouth of guide oil control valve group.
Further, described anti-sticking pricker valve group comprises reduction valve, first sequence valve, second sequence valve, 5th shuttle valve, two four-way pilot operated directional control valves, first relief valve, second relief valve, 3rd relief valve, 2/2-way pilot operated directional control valve, second one-way valve, 3rd one-way valve, first built-in one-way valve, first built-in one-way valve, second built-in one-way valve, 3rd built-in one-way valve, 4th built-in one-way valve, 5th built-in one-way valve, first damper and the second damper, the A1 mouth of anti-sticking pricker valve group is connected with reduction valve and the second one-way valve simultaneously, with the e1 mouth of two four-way pilot operated directional control valves while of the oil outlet of described reduction valve, the k1 mouth of anti-sticking pricker valve group is connected with the 5th built-in individual event valve, the B1 of anti-sticking pricker valve group, A1 ', B1 ' mouth respectively with the f1 of two four-way pilot operated directional control valves, h1, g1 mouth connects, A1 ' the mouth of anti-sticking pricker valve group is connected with the control oil pocket of the second sequence valve, the B1 mouth of anti-sticking pricker valve group is connected with two filler openings of the 5th shuttle valve with the oil outlet of reduction valve, the oil outlet of the 5th shuttle valve is connected with the 4th built-in one-way valve, and the k3 mouth of described anti-sticking pricker valve group is connected with the first sequence valve, first sequence valve go out oil content three tunnel, the first via is connected with the control oil pocket of two four-way pilot operated directional control valves after the first damper, and the second tunnel second damper is connected with fuel tank, and the 3rd tunnel is connected with built-in one-way valve, the k4 mouth of described anti-sticking pricker valve group is connected with the 3rd built-in one-way valve, the k4 mouth of described anti-sticking pricker valve group is also connected with the 3rd one-way valve, 3rd one-way valve go out oil content three tunnel, the first via is through 2/2-way pilot operated directional control valve, be connected with fuel tank after second relief valve, second tunnel is connected with fuel tank after the 3rd relief valve, 3rd tunnel second sequence valve, be connected with fuel tank after first relief valve, the outlet of the second sequence valve is connected with the second built-in one-way valve, described reduction valve, first sequence valve, second sequence valve, the Leakage Energy outlet of two four-way pilot operated directional control valves is connected with fuel tank.
Further, described plunger pump 1 is load-sensitive plunger variable pump, and described multiple directional control valve is load-sensitive multi-way reversing Proportional valve.
Beneficial effect of the present invention: drill loader hydraulic pressure anti-sticking pricker control system of the present invention, by preceding solution, achieves following technique effect:
1, the present invention can set multistage propelling and surge pressure by guide oil source valve group, guide oil control valve group, Hydraulic guide control valve, Hydraulic guide control control valve unit, to adapt to different geological conditions, and effective realization initiatively anti-sticking pricker.
2, when running into card pricker situation, drill loader hydraulic pressure anti-sticking pricker control system of the present invention can control impactor, propelling cylinder proceeds to light punching, touches operation, repairs big gun hole, effectively improves anti-sticking pricker effect.
3, the present invention adopts load-sensitive technology, improves the efficiency of control system, and has good energy-saving effect, adopts load-sensitive plunger variable pump, load-sensitive proportional reversing valve, improves the control accuracy of control system, simple to operation.
Accompanying drawing explanation
Fig. 1 is principle of the invention figure;
Fig. 2 is the schematic diagram of multiple directional control valve in Fig. 1;
Fig. 3 is the schematic diagram of guide oil source valve group in Fig. 1;
Fig. 4 is the schematic diagram of guide oil control valve group in Fig. 1;
Fig. 5 is the schematic diagram of anti-sticking pricker valve group in Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in the figure, the present embodiment drill loader hydraulic pressure anti-sticking pricker control system, comprise fuel tank 22, plunger pump 1, multiple directional control valve 2, guide oil source valve group 4, guide oil control valve group 5, Hydraulic guide control valve 11, Hydraulic guide control control valve unit 12, anti-sticking pricker valve group 6, equilibrium valve group 7, propelling cylinder 8, impactor 9 and pricker and turn motor 10
The oil outlet of described plunger pump 1 is connected with multiple directional control valve 2 and guide oil source valve group 4 respectively, and multiple directional control valve 2 is connected with fuel tank 22 through cooler 21 with the return opening of guide oil source valve group 4;
The P2 mouth of described guide oil source valve group 4 is connected with Hydraulic guide control valve 11 and Hydraulic guide control control valve unit 12, Hydraulic guide control valve 11 is connected with fuel tank 22 with the return opening of Hydraulic guide control control valve unit 12, the a2 ' of described Hydraulic guide control control valve unit 12, the a2 ' of b2 ' mouth and pilot-actuated valve group 5, b2 ' mouth connects, the b1 mouth of Hydraulic guide control control valve unit 12 is connected with the b1 mouth of multiple directional control valve 2, the a1 of described pilot-actuated valve group 5, a2, the a1 of b2 mouth and multiple directional control valve 2, a2, b2 mouth connects, the k1 of pilot-actuated valve group 5, the k1 of k2 mouth and anti-sticking pricker valve group 6, k2 mouth connects, the B3 of described multiple directional control valve 2 the 3rd, M4 mouth respectively with the k3 of anti-sticking pricker valve group, k4 mouth connects,
Described drill loader hydraulic pressure anti-sticking pricker control system also comprises the first pressure gauge 13 detecting plunger pump 1 outlet oil pressure, the second pressure gauge 14 detecting guide oil source valve group 4 outlet oil pressure, detects the 3rd pressure gauge 15 of propelling cylinder 8 pressure, detection pricker turns the 4th pressure gauge 16 of motor 10 reversal pressure and detect the 5th pressure gauge 17 of impactor 9 pressure;
A1, B1 mouth of described multiple directional control valve 2 first is connected with A1, B1 mouth of anti-sticking pricker valve group 6, and A1 ', the B1 ' mouth of anti-sticking pricker valve group 6 are connected with equilibrium valve group 7, and equilibrium valve group 7 is connected with propelling cylinder 8; The B1 mouth of described multiple directional control valve 2 second is connected with impactor 9, and the A1 mouth of multiple directional control valve 2 second is closed, and the return opening of impactor 9 is connected with fuel tank 22; Described multiple directional control valve 2 the 3rd A3, B3 mouth turn motor 10 with pricker and be connected, the Leakage Energy outlet that pricker turns motor 10 is connected with fuel tank 22.
As the improvement to the present embodiment, described multiple directional control valve 2 comprises safety valve 30, first main control valve 24, second main control valve 29, 3rd main control valve 213, first compensator 31, second compensator 28, 3rd compensator 212, one LS relief valve 25, 2nd LS relief valve 26, 3rd LS relief valve 210, 4th LS relief valve 214, first shuttle valve 23, second shuttle valve 27, 3rd shuttle valve 211, first overload oil compensating valve 215, second overload oil compensating valve 216, 3rd overload oil compensating valve 217, 4th overload oil compensating valve 218, 5th overload oil compensating valve 219 and the 6th overload oil compensating valve 220, three main control valve Median Functions of described multiple directional control valve 2 are Y type, the A1 oil circuit of described multiple directional control valve 2 first is with a LS relief valve 25 and the 6th overload oil compensating valve 220, and the B1 oil circuit of described multiple directional control valve 2 first is with the 2nd LS relief valve 26 and the 5th overload oil compensating valve 219, A2, B2 oil circuit of described multiple directional control valve 2 second shares the 3rd LS relief valve 210, and the B2 oil circuit of described multiple directional control valve 2 second is with the 3rd overload oil compensating valve 217, and the A2 oil circuit of described multiple directional control valve 2 second is closed, A3, B3 oil circuit of described multiple directional control valve 2 the 3rd shares the 4th LS relief valve 214, and A3, B3 oil circuit of described multiple directional control valve 2 the 3rd is respectively with the first overload oil compensating valve 215 and the second overload oil compensating valve 216.
The present invention can set multistage propelling and surge pressure by guide oil source valve group 4, guide oil control valve group 5, Hydraulic guide control valve 11, Hydraulic guide control control valve unit 12, control propelling cylinder 8, impactor 9 to adapt to different geological conditions, effective realization initiatively anti-sticking pricker.When running into card pricker situation, of the present invention drill loader hydraulic pressure anti-sticking pricker control system can control impactor 9, propelling cylinder 8 proceeds to light punching, touches operation, repairs big gun hole, effectively improves anti-sticking pricker effect.
As the improvement to the present embodiment, described guide oil source valve group 4 comprises decompression relief valve 41, first one-way valve 42 and accumulator 43, the output high pressure oil of described plunger pump 1 is connected with the P2 mouth of accumulator 43 and guide oil source valve group 4 after individual event valve 42 respectively through the P1 mouth of guide oil source valve group 4, decompression relief valve 41 successively, and the return opening of described decompression relief valve 41 is connected with fuel tank 22 with leakage hydraulic fluid port; This structure guide oil source valve group 4 can highi degree of accuracy regulable control oil oil pressure.
As the improvement to the present embodiment, described guide oil control valve group 5 comprises directional control valve 51, two-bit triplet hydraulic control valve 52 and the 4th shuttle valve 53, a2 ' the mouth of guide oil control valve group 5 is connected with a filler opening of the 4th shuttle valve 53, the b2 ' of guide oil control valve group 5 is connected with k2 mouth another filler opening with the 4th shuttle valve 53, the oil outlet of the 4th shuttle valve 53 is connected with the a1 mouth of guide oil control valve group 5 and the G1 mouth of two-bit triplet hydraulic control valve 52 simultaneously, the T1 mouth of two-bit triplet hydraulic control valve 52, the T2 mouth of directional control valve 51 is connected with fuel tank 22 with the a2 mouth of guide oil control valve group 5, the N1 mouth of two-bit triplet hydraulic control valve 52 is connected with the b2 mouth of guide oil control valve group 5, the N2 mouth of directional control valve 51 is connected with the control oil pocket of two-bit triplet hydraulic control valve 52, the G2 mouth of directional control valve 51 is connected with the k1 mouth of guide oil control valve group 5, the defeated accurate control oil pressure of this structure guide oil control valve group 5 energy, and valve group reaction is sensitive, corresponding speed is fast.
As the improvement to the present embodiment, described anti-sticking pricker valve group 6 comprises reduction valve 61, first sequence valve 62, second sequence valve 65, 5th shuttle valve 63, two four-way pilot operated directional control valves 64, first relief valve 66, second relief valve 67, 3rd relief valve 68, 2/2-way pilot operated directional control valve 69, second one-way valve 610, 3rd one-way valve 611, first built-in one-way valve 612, first built-in one-way valve 613, second built-in one-way valve 614, 3rd built-in one-way valve 615, 4th built-in one-way valve 616, 5th built-in one-way valve 617, first damper 618 and the second damper 619, the A1 mouth of anti-sticking pricker valve group 6 is connected with reduction valve 61 and the second one-way valve 610 simultaneously, the oil outlet of described reduction valve 61 simultaneously with the e1 mouth of two four-way pilot operated directional control valves 64, the k1 mouth of anti-sticking pricker valve group 6 is connected with the 5th built-in individual event valve 617, the B1 of anti-sticking pricker valve group 6, A1 ', B1 ' mouth respectively with the f1 of two four-way pilot operated directional control valves 64, h1, g1 mouth connects, A1 ' the mouth of anti-sticking pricker valve group 6 is connected with the control oil pocket of the second sequence valve 65, the B1 mouth of anti-sticking pricker valve group 6 is connected with two filler openings of the 5th shuttle valve 63 with the oil outlet of reduction valve 61, the oil outlet of the 5th shuttle valve 63 is connected with the 4th built-in one-way valve 616, and the k3 mouth of described anti-sticking pricker valve group 6 is connected with the first sequence valve 62, first sequence valve 62 go out oil content three tunnel, the first via is connected with the control oil pocket of two four-way pilot operated directional control valves 64 after the first damper 618, and the second tunnel second damper 619 is connected with fuel tank 22, and the 3rd tunnel is connected with built-in one-way valve 612, the k4 mouth of described anti-sticking pricker valve group 6 is connected with the 3rd built-in one-way valve 615, the k4 mouth of described anti-sticking pricker valve group 6 is also connected with the 3rd one-way valve 611, 3rd one-way valve 611 go out oil content three tunnel, the first via is through 2/2-way pilot operated directional control valve 69, be connected with fuel tank 22 after second relief valve 67, second tunnel is connected with fuel tank 22 after the 3rd relief valve 68, 3rd tunnel second sequence valve 65, be connected with fuel tank 22 after first relief valve 66, the outlet of the second sequence valve 65 is connected with the second built-in one-way valve 614, described reduction valve 61, first sequence valve 62, second sequence valve 65, the Leakage Energy outlet of two four-way pilot operated directional control valves 64 is connected with fuel tank 22, this structure anti-sticking pricker valve group 6 can realize controlling impactor 9, propelling cylinder 8 proceeds to light punching, touches operation, repairs big gun hole, effectively improves anti-sticking pricker effect.
As the improvement to the present embodiment, described plunger pump 1 is load-sensitive plunger variable pump, and described multiple directional control valve 2 is load-sensitive multi-way reversing Proportional valve; Native system adopts load-sensitive technology, improves the efficiency of control system, and has good energy-saving effect, adopts load-sensitive plunger variable pump, load-sensitive proportional reversing valve, improves the control accuracy of control system, simple to operation.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (3)
1. a drill loader hydraulic pressure anti-sticking pricker control system, comprise fuel tank (22), plunger pump (1), multiple directional control valve (2), guide oil source valve group (4), pilot-actuated valve group (5), Hydraulic guide control valve (11), Hydraulic guide control control valve unit (12), anti-sticking pricker valve group (6), equilibrium valve group (7), propelling cylinder (8), impactor (9) and pricker and turn motor (10), it is characterized in that:
A1, B1 oil circuit of described multiple directional control valve (2) first is the outlet oil circuit of multiple directional control valve (2) first;
A2, B2 oil circuit of described multiple directional control valve (2) second is the outlet oil circuit of multiple directional control valve (2) second;
A3, B3 oil circuit of described multiple directional control valve (2) the 3rd is the outlet oil circuit of multiple directional control valve (2) the 3rd;
The P1 mouth of described guide oil source valve group (4) is the filler opening of guide oil source valve group (4);
The P2 mouth of described guide oil source valve group (4) is the oil outlet of guide oil source valve group (4);
The oil outlet of described plunger pump (1) is connected with multiple directional control valve (2) and guide oil source valve group (4) respectively, and multiple directional control valve (2) is connected with fuel tank (22) through cooler (21) with the return opening of guide oil source valve group (4);
The P2 mouth of described guide oil source valve group (4) is connected with Hydraulic guide control valve (11) and Hydraulic guide control control valve unit (12), Hydraulic guide control valve (11) is connected with fuel tank (22) with the return opening of Hydraulic guide control control valve unit (12), the a2 ' of described Hydraulic guide control control valve unit (12), the a2 ' of b2 ' mouth and pilot-actuated valve group (5), b2 ' mouth connects, the b1 mouth of Hydraulic guide control control valve unit (12) is connected with the b1 mouth of multiple directional control valve (2), the a1 of described pilot-actuated valve group (5), a2, the a1 of b2 mouth and multiple directional control valve (2), a2, b2 mouth connects, the k1 of pilot-actuated valve group (5), the k1 of k2 mouth and anti-sticking pricker valve group (6), k2 mouth connects, the B3 of described multiple directional control valve (2) the 3rd, the M4 mouth of second respectively with the k3 of anti-sticking pricker valve group, k4 mouth connects,
Described drill loader hydraulic pressure anti-sticking pricker control system also comprises the first pressure gauge (13) detecting plunger pump (1) outlet oil pressure, the second pressure gauge (14) detecting guide oil source valve group (4) outlet oil pressure, detects the 3rd pressure gauge (15) of propelling cylinder (8) pressure, detection pricker turns the 4th pressure gauge (16) of motor (10) reversal pressure and detect the 5th pressure gauge (17) of impactor (9) pressure;
A1, B1 mouth of described multiple directional control valve (2) first is connected with A1, B1 mouth of anti-sticking pricker valve group (6), A1 ', the B1 ' mouth of anti-sticking pricker valve group (6) are connected with equilibrium valve group (7), and equilibrium valve group (7) is connected with propelling cylinder (8); The B2 mouth of described multiple directional control valve (2) second is connected with impactor (9), and the A2 mouth of multiple directional control valve (2) second is closed, and the return opening of impactor (9) is connected with fuel tank (22); Described multiple directional control valve (2) the 3rd A3, B3 mouth turn motor (10) with pricker and be connected, the Leakage Energy outlet that pricker turns motor (10) is connected with fuel tank (22);
A2 ', the b2 ' of described Hydraulic guide control control valve unit (12), b1 mouth are three oil outlets of Hydraulic guide control control valve unit (12);
The a2 ' of described pilot-actuated valve group (5), b2 ' mouth are two filler openings of pilot-actuated valve group (5);
A1, a2, b2, k2 mouth of described pilot-actuated valve group (5) is four oil outlets of pilot-actuated valve group (5);
The k1 mouth of described pilot-actuated valve group (5) is the control oil inlet of pilot-actuated valve group (5);
K2, k3, k4 mouth of described anti-sticking pricker valve group (6) is the control oil inlet of anti-sticking pricker valve group (6), and k1 mouth is the control oil export of anti-sticking pricker valve group (6);
The M4 mouth of described multiple directional control valve (2) second is the Ls signal oil outlet of described multiple directional control valve (2) second;
A1, b1, a2, b2 mouth of described multiple directional control valve (2) is four pilot control hydraulic fluid ports of multiple directional control valve (2);
A1, B1 mouth of described anti-sticking pricker valve group (6) is two filler openings of anti-sticking pricker valve group (6), and the A1 ' of anti-sticking pricker valve group (6), B1 ' mouth are two oil outlets of anti-sticking pricker valve group (6);
Described multiple directional control valve (2) comprises safety valve (30), first main control valve (24), second main control valve (29), 3rd main control valve (213), first compensator (31), second compensator (28), 3rd compensator (212), one LS relief valve (25), 2nd LS relief valve (26), 3rd LS relief valve (210), 4th LS relief valve (214), first shuttle valve (23), second shuttle valve (27), 3rd shuttle valve (211), first overload oil compensating valve (215), second overload oil compensating valve (216), 3rd overload oil compensating valve (217), 4th overload oil compensating valve (218), 5th overload oil compensating valve (219) and the 6th overload oil compensating valve (220), three main control valve Median Functions of described multiple directional control valve (2) are Y type, the A1 oil circuit of described multiple directional control valve (2) first is with a LS relief valve (25) and the 6th overload oil compensating valve (220), and the B1 oil circuit of described multiple directional control valve (2) first is with the 2nd LS relief valve (26) and the 5th overload oil compensating valve (219), A2, B2 oil circuit of described multiple directional control valve (2) second shares the 3rd LS relief valve (210), the B2 oil circuit of described multiple directional control valve (2) second is with the 3rd overload oil compensating valve (217), and the A2 oil circuit of described multiple directional control valve (2) second is closed, A3, B3 oil circuit of described multiple directional control valve (2) the 3rd shares the 4th LS relief valve (214), and A3, B3 oil circuit of described multiple directional control valve (2) the 3rd is respectively with the first overload oil compensating valve (215) and the second overload oil compensating valve (216),
Described pilot-actuated valve group (5) comprises directional control valve (51), two-bit triplet hydraulic control valve (52) and the 4th shuttle valve (53), a2 ' the mouth of pilot-actuated valve group (5) is connected with a filler opening of the 4th shuttle valve (53), the b2 ' of pilot-actuated valve group (5) is connected with k2 mouth another filler opening with the 4th shuttle valve (53), the oil outlet of the 4th shuttle valve (53) is connected with the a1 mouth of pilot-actuated valve group (5) and the G1 mouth of two-bit triplet hydraulic control valve (52) simultaneously, the T1 mouth of two-bit triplet hydraulic control valve (52), the T2 mouth of directional control valve (51) is connected with fuel tank (22) with the a2 mouth of pilot-actuated valve group (5), the N1 mouth of two-bit triplet hydraulic control valve (52) is connected with the b2 mouth of pilot-actuated valve group (5), the N2 mouth of directional control valve (51) is connected with the control oil pocket of two-bit triplet hydraulic control valve (52), the G2 mouth of directional control valve (51) is connected with the k1 mouth of pilot-actuated valve group (5),
The G1 mouth of described two-bit triplet hydraulic control valve (52) and T1 mouth are two filler openings of two-bit triplet hydraulic control valve (52), and the N1 mouth of described two-bit triplet hydraulic control valve (52) is the oil outlet of two-bit triplet hydraulic control valve (52);
The G2 mouth of described directional control valve (51) and T2 mouth are the filler opening of directional control valve (51), and the N2 mouth of directional control valve (51) is the oil outlet of directional control valve (51);
Described anti-sticking pricker valve group (6) comprises reduction valve (61), first sequence valve (62), second sequence valve (65), 5th shuttle valve (63), two four-way pilot operated directional control valves (64), first relief valve (66), second relief valve (67), 3rd relief valve (68), 2/2-way pilot operated directional control valve (69), second one-way valve (610), 3rd one-way valve (611), first built-in one-way valve (612), first built-in one-way valve (613), second built-in one-way valve (614), 3rd built-in one-way valve (615), 4th built-in one-way valve (616), 5th built-in one-way valve (617), first damper (618) and the second damper (619), the A1 mouth of anti-sticking pricker valve group (6) is connected with reduction valve (61) and the second one-way valve (610) simultaneously, with the e1 mouth of two four-way pilot operated directional control valves (64) while of the oil outlet of described reduction valve (61), the k1 mouth of anti-sticking pricker valve group (6) is connected with the 5th built-in one-way valve (617), the B1 of anti-sticking pricker valve group (6), A1 ', B1 ' mouth respectively with the f1 of two four-way pilot operated directional control valves (64), h1, g1 mouth connects, A1 ' the mouth of anti-sticking pricker valve group (6) is connected with the control oil pocket of the second sequence valve (65), the B1 mouth of anti-sticking pricker valve group (6) is connected with two filler openings of the oil outlet of reduction valve (61) with the 5th shuttle valve (63), the oil outlet of the 5th shuttle valve (63) is connected with the 4th built-in one-way valve (616), and the k3 mouth of described anti-sticking pricker valve group (6) is connected with the first sequence valve (62), first sequence valve (62) go out oil content three tunnel, the first via is connected with the control oil pocket of two four-way pilot operated directional control valves (64) after the first damper (618), second tunnel second damper (619) is connected with fuel tank (22), and the 3rd tunnel is connected with built-in one-way valve (612), the k4 mouth of described anti-sticking pricker valve group (6) is connected with the 3rd built-in one-way valve (615), the k4 mouth of described anti-sticking pricker valve group (6) is also connected with the 3rd one-way valve (611), 3rd one-way valve (611) go out oil content three tunnel, the first via is through 2/2-way pilot operated directional control valve (69), second relief valve (67) is connected with fuel tank (22) afterwards, second tunnel is connected with fuel tank (22) after the 3rd relief valve (68), 3rd tunnel second sequence valve (65), first relief valve (66) is connected with fuel tank (22) afterwards, the outlet of the second sequence valve (65) is connected with the second built-in one-way valve (614), described reduction valve (61), first sequence valve (62), second sequence valve (65), the Leakage Energy outlet of two four-way pilot operated directional control valves (64) is connected with fuel tank (22),
The e1 mouth of described two four-way pilot operated directional control valves (64) and f1 mouth are two filler openings of two four-way pilot operated directional control valves (64), and h1, g1 mouth of described two four-way pilot operated directional control valves (64) is two oil outlets of two four-way pilot operated directional control valves (64);
Described Hydraulic guide control control valve unit comprises four reduction valve and four reduction valve is carried out to the Joystick of state control.
2. drill loader hydraulic pressure anti-sticking pricker control system according to claim 1, it is characterized in that: described guide oil source valve group (4) comprises decompression relief valve (41), first one-way valve (42) and accumulator (43), the output high pressure oil of described plunger pump (1) is successively through the P1 mouth of guide oil source valve group (4), decompression relief valve (41) is connected with the P2 mouth of accumulator (43) and guide oil source valve group (4) respectively with after one-way valve (42), the return opening of described decompression relief valve (41) is connected with fuel tank (22) with leakage hydraulic fluid port.
3. drill loader hydraulic pressure anti-sticking pricker control system according to claim 1, is characterized in that: described plunger pump (1) is load-sensitive plunger variable pump, and described multiple directional control valve (2) is load-sensitive multi-way reversing Proportional valve.
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| CN201210455289.7A CN102927071B (en) | 2012-11-14 | 2012-11-14 | Hydraulic anti-jamming control system of drilling and loading machine |
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| CN201210455289.7A CN102927071B (en) | 2012-11-14 | 2012-11-14 | Hydraulic anti-jamming control system of drilling and loading machine |
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